Allied Health & Imaging · Independent exam preparation
Seating and Mobility Specialist (SMS) Certification Exam Study Guide
Practise seating assessment, feature matching, fitting, training and outcome decisions for RESNA's SMS specialty exam, with focused cases and recall drills.
By CertMedbry · Updated 30 October 2026
Practise deciding which findings matter, translating them into seating and mobility features, verifying the delivered system, and measuring whether daily participation improves. This selective 60-concept guide follows RESNA's SMS service sequence and integrates professional conduct throughout. Use the official examination outline as the full scope, including knowledge topics beyond these selected concepts. Cases, questions and flashcards are independently authored learning materials.
Try 20 free practice questionsWhat is the exam format?
Check the question types, timing and outline before planning your revision.
Which certification pathway does this guide cover?
It covers the Seating and Mobility Specialist (SMS) Certification Exam. RESNA describes SMS as a specialty focused on seating, positioning and mobility for clinicians, suppliers, engineers and others providing these services. ATP covers broader assistive technology knowledge and is a prerequisite for SMS, rather than a second examination incorporated into this guide.
Which blueprint and effective date apply?
The applicable outline is the 2024 Seating and Mobility Job Task Domains, effective January 1, 2024. RESNA's linked page has SMS-Exam-Outline-2023 in its URL; that URL does not change the outline's stated effective date. The official outline defines the full examination scope; this guide teaches a selective set of concepts within it.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · SMS General Info
How are the official domains weighted?
Assessment of Need is 33%; Development of Intervention Strategies - Action Plan is 26%; Implementation of Intervention (Once Funded) is 26%; Evaluation of Intervention (Follow-up) is 15%. Professional Conduct has no separately assigned weight and is integrated across the other domains. This guide includes 19, 15, 15 and 9 concepts in the four weighted domains, plus two explicit professional-conduct concepts. Questions and flashcards each use a 7/5/5/3 allocation, with ethics integrated.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
What are the question count, scored and pretest counts, and duration?
RESNA currently lists 165 multiple-choice questions. The scored/pretest breakdown and examination duration remain unconfirmed here; check current SMS-specific candidate and scheduling information for those details. RESNA describes a separate 10-minute tutorial before the examination, which does not establish examination duration. This guide's 20 questions are a learning set rather than the official examination length.
RESNA > Certification > Seating and Mobility Specialist (SMS) > About the SMS Exam
How is the examination delivered, and what item format is confirmed?
RESNA currently states that the SMS examination uses multiple-choice questions, is administered by computer at Prometric test centers around the world, and is delivered in English. Adaptivity remains unconfirmed; computer delivery alone does not establish adaptive testing. The four-option questions in this guide are independent single-best-answer practice items.
RESNA > Certification > Seating and Mobility Specialist (SMS) > About the SMS Exam
What eligibility requirements are established?
RESNA lists ATP certification as a prerequisite, at least 1,000 hours of seating and mobility service with consumers acquired at any time, and two specified types of professional activities within five years. The eligibility page governs the detailed categories and documentation requirements; meeting an isolated hour requirement does not by itself establish eligibility.
What are the application charges and passing score?
RESNA currently lists a $125 application fee, followed by a separate $300 SMS examination charge after application approval. RESNA reports scores on a 100–600 scale, with a passing scaled score of 400 or above. A scaled score of 400 does not establish a raw percentage-correct requirement; dividing 400 by 600 is not a valid way to calculate the required percentage of correct answers. Confirm current charges when applying.
Applying for the Seating and Mobility Specialist (SMS) Certification Exam · RESNA > Certification > Seating and Mobility Specialist (SMS) > About the SMS Exam
How should the clinical references and jurisdictional limits be understood?
RESNA's outline establishes examination scope. WHO's 2023 wheelchair provision overview supports individualized assessment, fitting, training and follow-up; its 2013 intermediate training material supplies supplementary foundational posture and measurement instruction. The International Guideline supplies pressure-injury seating and skin-assessment guidance, and UMTRI supports the transport distinctions taught here. Supplementary fitting ranges and clinical repositioning recommendations are not official examination rules. These references do not establish a universal payer policy or replace applicable professional, transport or funding requirements.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Wheelchair provision guidelines · Wheelchair Service Training Package — Intermediate level · Seating — International Guideline · Skin and Tissue Assessment — International Guideline · University of Michigan Transportation Research Institute — FAQ C3
This guide covers RESNA's Seating and Mobility Specialist (SMS) Certification Exam. SMS is a specialty certification for seating and mobility professionals; ATP is the broader prerequisite credential. The workbook label ATP/SMS does not identify a combined examination. RESNA is the Rehabilitation Engineering and Assistive Technology Society of North America.
Outline used: 2024 Seating and Mobility Job Task Domains, effective January 1, 2024; verified against RESNA's currently linked SMS Exam Outline 2023 page on October 12, 2026. The workbook label 'Assistive Technology Professional Seating and Mobility Specialist (ATP/SMS)' maps to RESNA's SMS specialty examination: ATP certification is an admission prerequisite, not part of a combined ATP/SMS examination. Assigned slug preserved.
60 key concepts: understand, apply and avoid the traps
Work through the questions by exam domain. Explain the answer in your own words, try the example, then check the common pitfall.
Assessment of Need33%
1.How does meaningful consent shape the assessment?
Consent requires a person to understand the proposed assessment and have a meaningful opportunity to participate or decline. Explain what will happen, why information is needed, and who will receive it using the person's effective communication method. Distinguish communication difficulty from inability to make decisions. The discriminating cue is whether the person can express an informed preference with appropriate support, rather than whether speech is fluent or a caregiver answers quickly.
Apply it
A client uses an eye-gaze communication system while a relative answers every question. Arrange accessible choices and adequate response time, explain the physical assessment directly to the client, and establish the client's agreement before proceeding.
Common pitfall: Treating a caregiver's convenient answer as the client's consent can erase participation. Communication support should enable the person's decision rather than automatically replace it.
2.When does a seating referral require another professional's assessment?
A seating referral may include problems that cannot be explained or managed through equipment adjustment alone. Separate the equipment question from a new clinical change, establish what is known, and involve a professional with the relevant competence when the finding exceeds your scope. Timing, progression and association with equipment use help distinguish longstanding positioning needs from an unresolved change. Referral should answer a defined question while preserving the person's participation in the service process.
Apply it
A wheelchair user reports new pain that began before any equipment change and persists outside the chair. Document its timing and functional effect, arrange appropriate clinical assessment, and avoid presenting a cushion change as an established explanation.
Common pitfall: A plausible seating explanation does not establish a diagnosis. Repeated adjustment can delay appropriate assessment when the problem extends beyond the practitioner's demonstrated competence.
Updated Code of Ethics and Standards of Practice · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
3.How do participation goals become measurable assessment targets?
A useful goal identifies an activity, its setting and the performance that matters to the person. Translate broad wishes such as independence into observable targets, including assistance, completion time, comfort or successful access where relevant. Establish the starting performance before choosing equipment. The decisive distinction is between obtaining a device and achieving an activity: equipment delivery is a service milestone, while independently reaching a classroom is a participation outcome.
Apply it
A student wants to join lunch with friends. Define the route, doorway and table requirements, then record current travel time and assistance. These observations create targets for comparing potential mobility and seating configurations during later trials.
Common pitfall: A goal such as receive a better wheelchair cannot show whether participation improved. Specify the activity and conditions before selecting the outcome measure.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Wheelchair provision guidelines
4.Which environmental measurements can change a wheelchair recommendation?
Environmental assessment connects the occupied wheelchair's dimensions and movement requirements with the spaces the person must use. Identify actual limiting points, including clear openings, approach space, turning areas and access to work surfaces. Measure the relevant configuration rather than relying on the nominal frame width. A configuration that passes straight through an opening may still fail when the approach requires a turn or when an accessory projects beyond the base.
Apply it
A chair fits through a bathroom doorway during a straight approach, but the home corridor requires a turn immediately before entry. Recreate that approach with the occupied trial chair and include its control and support projections.
Common pitfall: Comparing only advertised chair width with doorway width misses approach geometry. The limiting dimension may belong to an accessory or to the occupied configuration.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · 2024 Seating and Mobility Knowledge Topics
5.Why assess seating and mobility across the whole day?
Needs vary across activities, environments, available assistance and time spent using the system. Map the person's usual day to identify where a proposed solution must function and where another arrangement is used. A successful clinic observation represents only the conditions observed. The discriminating clue is a mismatch between performance during a brief appointment and the demands of school, work, home, transport or an extended period of sitting.
Apply it
A client drives comfortably during a morning visit but reports difficulty accessing controls late in the workday. Include the later period and typical work tasks in assessment instead of assuming the morning performance represents the entire day.
Common pitfall: A short successful demonstration does not establish sustained daily usability. Missing a recurring context can produce a recommendation that solves only the clinic task.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Wheelchair provision guidelines
6.How can electrical measurements distinguish a battery problem from a supply-path problem?
Interpret voltage at a specified location and operating condition. In a simplified troubleshooting case, simultaneous readings of 24 V at the battery terminals and 20 V at the controller input under the same load identify a 4 V difference across the intervening supply path. They do not show that battery-terminal voltage fell to 20 V. If battery-terminal voltage itself falls under load, the pattern differs and requires battery and circuit assessment. These are case-based circuit inferences; actual limits and test procedures depend on the equipment.
Apply it
A service report supplies simultaneous loaded readings of 24 V at the battery and 20 V at the controller. Direct qualified troubleshooting toward the intervening connections and wiring before authorizing battery replacement solely from the controller reading.
Common pitfall: Readings taken at different times or loads cannot localize a voltage difference reliably. A single voltage reading also does not establish battery capacity or identify a particular failed component.
2024 Seating and Mobility Knowledge Topics · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
7.How do capacity and daily performance differ?
Capacity describes what a person can do under specified assessment conditions; daily performance describes what occurs in the person's usual setting. Both are useful, but they answer different questions. Record the support, surface, time and assistance associated with each observation. A successful isolated task may demonstrate an available skill without showing that the skill is practical throughout the day. Disagreement between clinic and home reports should prompt examination of conditions rather than dismissal of either observation.
Apply it
A user propels across a smooth clinic floor independently but receives assistance on the route to work. Compare route surfaces, distance and required tasks, then evaluate whether the clinic test represents the actual participation demand.
Common pitfall: Calling either report inaccurate because the results differ overlooks environmental effects. Performance comparisons require comparable conditions or an explicit explanation of their differences.
2024 Seating and Mobility Knowledge Topics · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
8.How should endurance affect functional assessment?
An assessment should distinguish the ability to initiate an action from the ability to repeat or sustain it for the intended task. Observe performance over a relevant period and record changes in accuracy, assistance or comfort. Interpret results alongside the person's normal schedule and recovery opportunities. The key clue is deterioration during representative use, which may be missed by a single successful reach, propulsion attempt or control activation at the beginning of an appointment.
Apply it
A person activates a switch accurately five times but needs hundreds of activations during a work task. Sample a representative work sequence and document whether access remains consistent before treating initial accuracy as sufficient evidence.
Common pitfall: A brief maximum effort can overstate usable daily function. Avoid converting one successful movement into an assumption of reliable sustained access without representative observation.
2024 Seating and Mobility Knowledge Topics · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
9.How do reduced sensation and limited repositioning change seating selection?
Reduced sensation can remove the warning feedback that would ordinarily prompt a person to move away from sustained loading. Limited movement can prevent effective unloading even when the person recognizes a problem. Assess these functions separately: feeling pressure does not establish an ability to redistribute it, and moving a limb does not establish that the ischial region unloads. The International Guideline identifies immobility, decreased sensation and altered pathophysiology as contributors to pressure-injury risk in spinal cord injury. Selection must address pressure redistribution, effective repositioning and practical monitoring.
Apply it
A user has reduced buttock sensation and cannot independently unload the seated prominences. Compare pressure-redistributing cushions and feasible assisted or dynamic weight-shifting arrangements; establish how skin changes will be detected rather than relying on discomfort as the warning.
Common pitfall: Absence of pain does not establish tissue tolerance when sensation is impaired. A cushion does not replace an effective, feasible repositioning and skin-monitoring plan.
Seating — International Guideline · 2024 Seating and Mobility Knowledge Topics
10.Why examine the pelvis before interpreting trunk alignment?
The pelvis provides the seated base from which trunk alignment is interpreted. Examine pelvic position and available movement before deciding that a visible trunk deviation requires an isolated trunk support. Hand simulation can show how changing the base affects the trunk and head. The discriminating cue is whether the upper-body position changes when the pelvis is supported differently. This helps separate a dependent postural response from a deviation that remains despite an appropriate pelvic base.
Apply it
A user appears to lean right. During assessment, appropriate pelvic support reduces much of the trunk deviation. Record that relationship and trial support from the base before prescribing a trunk component to push the shoulders upright.
Common pitfall: Correcting the shoulders while ignoring the pelvic base may oppose the person's underlying posture. Visible trunk asymmetry alone does not identify where support should begin.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
11.How do flexible and fixed postures lead to different support goals?
A flexible postural deviation can be moved toward an improved alignment during assessment; a fixed deviation does not permit that correction within the person's available movement. Use careful physical assessment and hand simulation to identify the range available without forcing the posture. The decision concerns the achievable support position. A flexible posture may permit corrective support, whereas a fixed posture generally requires accommodation that provides support in the available shape rather than forcing symmetry.
Apply it
Two users have similar pelvic asymmetry while seated. One can be comfortably brought toward level during assessment; the other's asymmetry remains. Record flexibility separately and use it to guide different support objectives during equipment trials.
Common pitfall: The appearance of asymmetry does not establish flexibility. Prescribing identical corrective supports from photographs alone can confuse a flexible deviation with a fixed posture.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
12.How are pelvic obliquity and pelvic rotation distinguished?
Pelvic obliquity concerns one side of the pelvis being higher than the other; pelvic rotation concerns one side being farther forward than the other. These are different spatial findings and can occur together. Assess the pelvis directly rather than inferring its position from shoulder height or knee position alone. Naming the direction accurately matters because a support intended to address a height difference may not address a forward-backward difference or its associated seated shape.
Apply it
A user's right knee projects farther forward, but the assessment also shows unequal pelvic heights. Document rotation and obliquity separately, assess their flexibility, and avoid reducing both observations to a single description of leaning.
Common pitfall: Unequal knee positions are a clue, not a complete pelvic assessment. Leg dimensions and available movement also affect what is visible from the front.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
13.How can limited hip movement alter the seated posture?
Assess hip movement while controlling pelvic position so pelvic compensation is not mistaken for hip range. Hips that cannot bend enough for neutral sitting leave a trunk-to-thigh angle greater than 90 degrees. For a bilateral bending restriction, an increased seat-to-back angle can accommodate the available angle; demanding a smaller angle can displace the pelvis and trunk. Hips that cannot open enough for neutral sitting leave a trunk-to-thigh angle below 90 degrees. This opening restriction requires appropriate support beneath the thighs to maintain their assessed elevated position relative to the trunk. WHO's intermediate manual distinguishes these patterns in sections B.3 and B.9.
Apply it
With the pelvis stabilized, both hips cannot bend beyond a trunk-to-thigh angle of 110 degrees. Trial an increased seat-to-back angle compatible with that finding and verify pelvic contact, trunk support and function in the occupied chair. If the hips instead cannot open beyond an 80-degree angle, simulate and trial support beneath the thighs to preserve that smaller angle. In either case, check foot support, component clearance and the full transfer sequence before finalizing the geometry.
Common pitfall: Bending and opening restrictions require different accommodations. An increased seat-to-back angle addresses bilateral bending restriction but does not supply the thigh support needed for an opening restriction. Measurements alone do not establish a workable occupied fit or transfer arrangement.
14.How is an initial seat depth calculated and verified?
WHO's intermediate manual, printed pages 107–108, gives an initial seat depth of posterior pelvis-to-popliteal measurement minus 30–50 mm. For a measurement of 460 mm, the initial range is 410–430 mm; 420 mm is a reasonable starting dimension within that range. This is supplementary fitting guidance, not an official examination rule. Verify the occupied result with the pelvis in its intended supported position, adequate thigh support and clearance behind the knees. Excessive depth can prevent posterior sitting or contact the popliteal region.
Apply it
A user measures 460 mm from the posterior pelvis to the back of each knee and sits forward on a 460 mm surface. Begin a trial within 410–430 mm, then refine it for occupied posture, transfers, cushion contour and any side-to-side difference.
Common pitfall: The calculated range is a starting point rather than a final prescription. Measuring from an already displaced pelvis, averaging asymmetry or ignoring transfer requirements can produce an unsuitable final depth.
ResourceArticle_Wheelchair-Service-Training-of-Trainers-Package-WSTPi-Intermediate.pdf
15.How should footrest height relate to the seating surface?
Footrest height should be interpreted relative to the surface that actually supports the seated person, including the cushion, and to lower-leg length with usual footwear. The measurement is a starting point for fitting rather than a substitute for observing foot contact and thigh support. Changes in cushion height can change the effective seat-to-footrest distance even when the frame setting remains unchanged. The discriminating cue is the resulting support relationship in the occupied chair.
Apply it
A user changes to a thicker cushion while the footrests stay fixed. Reassess effective lower-leg support in the occupied chair, including footwear, rather than assuming the unchanged footrest hardware preserves the previous fit for the user.
Common pitfall: A footrest setting measured from an unoccupied frame omits the actual support surface. Cushion changes can alter fit without any movement of the footrest assembly.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
16.How does seat width balance support and usable space?
Seat-width assessment considers the person's supported body dimensions, clothing, postural supports and functional access to the wheelchair. Width is not simply the largest space that can be provided. Excess space may reduce useful support or alter access, while insufficient space may interfere with fit. Verify the occupied arrangement and the activities that matter to the user. The decision is whether the available space accommodates the person and components while preserving intended function.
Apply it
A proposed chair offers extra width for a winter coat, but the user has difficulty reaching the wheels during trial. Compare realistic clothing needs, actual occupied width and propulsion access before accepting the wider frame.
Common pitfall: Adding generous space without a functional trial can create a new access problem. A body measurement alone also omits components that occupy usable seat width.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual · 2024 Seating and Mobility Knowledge Topics
17.What can hand simulation establish about postural support?
Hand simulation temporarily represents the location and direction of a possible support while observing its effect on posture and activity. It helps determine whether a proposed intervention can achieve the intended position within available movement. Observe breathing, communication, reaching and comfort as relevant to the person's goals. Simulation supplies a testable support hypothesis; it does not establish that a particular manufactured component, with its actual shape and mounting, will reproduce the result.
Apply it
Supporting the trunk at one location improves a client's access to a communication device. Record the support location and observed task change, then trial an actual component to check whether its shape and mounting preserve that benefit.
Common pitfall: A useful manual support is not a completed prescription. The real component must reproduce the helpful effect without creating interference during the person's activities.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
18.Which observations distinguish reliable control access from occasional activation?
Control access requires intentional activation, release and repeatability in the posture and environment where the system will be used. Observe unintended activations as well as successful ones, and document the assistance needed to establish the access position. A movement that occurs once may be available without being a dependable control method. The decisive evidence is repeated functional use, including the ability to stop or release the control when the task requires it.
Apply it
A client can touch a candidate switch but sometimes remains in contact after attempting to release it. Compare alternative positions and observe intentional activation and release across repeated task sequences before selecting that location for access.
Common pitfall: Counting successful contacts alone overlooks unwanted or sustained activations. Reliable access includes control over stopping the action, not merely the ability to initiate it.
2024 Seating and Mobility Knowledge Topics · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
19.How can baseline measurements support a fair later comparison?
A baseline is useful when its task, conditions and scoring method are sufficiently specified to repeat. Record the equipment configuration, route or activity, assistance and relevant timing rather than preserving only a final number. Choose measures linked to the person's goals. The discriminating issue is comparability: a faster later result may reflect a shorter route or greater assistance instead of an equipment benefit if assessment conditions are not documented.
Apply it
Record a workplace route's distance, obstacles, assistance and completion time before intervention. At follow-up, repeat those conditions where possible and identify any unavoidable changes so the result can be interpreted accurately against the documented baseline.
Common pitfall: A baseline number without its conditions can create false precision. Repeatability depends on what was measured and how, rather than the number of decimal places.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
Development of Intervention Strategies - Action Plan26%
20.How does feature matching turn findings into an action plan?
Feature matching connects an assessed need to a required equipment characteristic and a way to verify its benefit. Begin with the task or limitation, identify the function the technology must provide, and compare products that can supply that function. This creates a reasoned chain from assessment to recommendation. The decisive clue is whether each proposed feature has an identifiable purpose and trial criterion, rather than appearing only because it is available in a preferred product package.
Apply it
A user cannot position a communication device consistently after changing sitting position. Specify the required relationship between device and user, then compare mounting approaches against that requirement before selecting a particular manufacturer or accessory package.
Common pitfall: Starting with a preferred product can turn assessment into justification for existing choices. A feature should answer a documented need and have a verifiable benefit.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
21.How should manual and powered mobility options be compared?
Compare mobility approaches against the person's actual tasks, functional abilities, environments and support resources. A brief ability to propel does not establish that manual mobility meets every daily demand; difficulty with one powered-control arrangement does not establish that all powered options are unsuitable. Use representative trials and document benefits and limitations of each approach. The decision should follow demonstrated task performance and sustainable use rather than diagnosis, age or one isolated movement.
Apply it
A user manages short indoor distances manually but cannot complete the regular community route within available time and assistance. Compare appropriate mobility options on representative tasks and document the specific performance differences relevant to the person's goals.
Common pitfall: Treating one successful propulsion demonstration as a complete mobility prescription overlooks distance and context. Diagnostic labels likewise cannot replace an individualized comparison of functional options.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Wheelchair provision guidelines
22.How should a powered-control trial be structured?
A powered-control trial should test the access method, its placement and the task demands together. Establish an appropriate supported posture, identify observable criteria such as intentional direction changes and stopping, and allow suitable instruction before interpreting performance. Keep track of configuration changes so results remain interpretable. The key distinction is between failure of a particular setup and inability to use powered mobility; an unsuitable control position can obscure the person's potential with another arrangement.
Apply it
A client performs inconsistently with a trial control placed outside the assessed reliable movement area. Reposition it within that area, provide instruction, and compare repeated starts, turns and stops before drawing conclusions about access suitability.
Common pitfall: Declaring an entire mobility approach unsuitable after one poorly matched setup confuses configuration failure with user limitation. Trial conditions must be documented and reasonably matched.
2024 Seating and Mobility Knowledge Topics · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
23.How do immersion, envelopment and targeted offloading differ?
Immersion is sinking into a support surface, which distributes body mass over a larger area. Envelopment is the surface conforming to body contours, making loading less concentrated around prominences. Targeted offloading reduces loading at a selected anatomical region by transferring support elsewhere; hybrid cushions can combine these approaches. Compare shear reduction and microclimate as well: sliding-related tissue distortion, retained heat and moisture remain relevant even when pressure redistribution improves. Material category alone does not guarantee performance, and increased immersion or offloading can affect stability.
Apply it
A user with reduced sensation and a healed ischial injury has intact skin and needs stable work reaching. Compare an immersion/envelopment cushion with a contoured offloading option for loading at the vulnerable region, bottoming out during reaching, stability, shear, heat/moisture management and feasible maintenance. Do not select solely by softness or a single pressure-map value.
Common pitfall: Redistributing pressure does not prove that shear, microclimate or stability are acceptable. A targeted relief area must match the user's anatomy and occupied position rather than simply being present in the cushion.
24.How should a flexible postural deviation influence support selection?
When assessment shows that a deviation is flexible, support selection can explore an improved achievable alignment and its functional consequences. Use the direction and location that were helpful during hand simulation, then verify the actual component in sitting. Correction is a means to useful support, rather than an end defined by visual symmetry alone. The discriminating evidence is that the position can be reached within available movement and maintained with acceptable comfort and task performance.
Apply it
A flexible pelvic deviation improves during hand simulation and the user reaches more accurately. Trial supports that reproduce that relationship, then check sustained sitting and reaching rather than judging success only from a level appearance.
Common pitfall: Flexibility permits exploration of correction but does not justify unlimited force. A visually improved position still requires verification of comfort, function and practical support.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
25.How should fixed pelvic asymmetry be accommodated?
For a fixed pelvic obliquity, WHO's intermediate manual describes support beneath the higher seat bone and associated thigh to fill the otherwise unsupported space. The support surface follows the available asymmetry rather than using a lift beneath the lower side to force leveling. The goals are useful contact, distribution of support and stability without exceeding available movement. Verify the occupied result and reassess each foot support separately because the accommodated pelvic and thigh positions can create different lower-limb support requirements.
Apply it
The left seat bone remains higher during assessment. Trial contouring beneath the higher left seat bone and associated thigh, preserve the fixed pelvic relationship, and check contact, stability, activity and side-specific foot support.
Common pitfall: Filling the space beneath the higher side accommodates the established shape; it is not a maneuver to force a level pelvis. Avoid treating a fixed obliquity as though corrective movement were available.
ResourceArticle_Wheelchair-Service-Training-of-Trainers-Package-WSTPi-Intermediate.pdf
26.How should unequal effective thigh lengths affect seat-depth planning?
Effective thigh length can differ between sides in the assessed sitting posture, so a single symmetric depth may not fit both legs equally. Measure and observe each side from the intended pelvic position. The plan should preserve useful thigh support while avoiding interference behind either knee, using an appropriate individualized arrangement where needed. The discriminating issue is actual seated geometry; averaging measurements does not establish that the resulting depth is acceptable on the shorter side.
Apply it
One thigh reaches the seat edge comfortably while the opposite knee contacts it when the pelvis is supported. Assess side-specific depth requirements and trial an individualized solution rather than choosing the average of the two measurements.
Common pitfall: Averaging unequal measurements can conceal interference on one side. Confirm each leg's relationship to the seat edge within the actual supported pelvic posture.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
27.How can mounting geometry preserve access during seat movement?
Integration requires understanding which parts of the system move together and which remain fixed. If a user and a device both attach to the same rigid moving seating assembly, their relative geometry can remain constant during that assembly's movement. A device mounted to a stationary base may move relative to the user. This is a geometric inference, not a guarantee of access: clearance, visibility and real task performance still require verification throughout the intended movement range.
Apply it
A communication device must remain at a fixed distance from a user during seat tilt. Compare a mount on the moving seating assembly with one on the stationary base, then test access and clearance through the required positions.
Common pitfall: Checking access only in the initial position misses movement-related displacement. Shared motion can preserve geometry, but it does not automatically establish safe clearance or usability.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · 2024 Seating and Mobility Knowledge Topics
28.How should transfer requirements influence the equipment plan?
Transfers connect seating configuration with the person's method, assistance and surrounding surfaces. Assess the actual transfer sequence and identify which components must move, remain available or provide clearance. A change that improves sitting may also change the starting height or access needed for transfer. The action plan should address these interactions before procurement. The discriminating cue is whether the proposed complete configuration permits the established or newly trained transfer method in the intended environment.
Apply it
A new support improves sitting but blocks the user's usual transfer route. Trial its removal or alternative placement and rehearse the full transfer with appropriate assistance before including that component configuration in the final recommendation.
Common pitfall: Evaluating sitting and transfer performance separately can miss a conflict at their interface. A removable component helps only if its handling is practical for users.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · 2024 Seating and Mobility Knowledge Topics
29.How do tilt and recline differ when planning pressure redistribution?
Tilt rotates the seat and back together while preserving the seat-to-back angle, transferring some support from the buttocks toward the back. Recline opens the seat-to-back angle and changes the trunk-to-thigh relationship; movement between the body and support surfaces can increase sliding and shear. The International Guideline recommends at least 30 degrees of tilt for clinically significant ischial pressure reduction. If that angle cannot be tolerated, use more frequent smaller position changes while individualizing the regimen and monitoring its effectiveness. Smaller changes should not be assumed to provide equivalent unloading. The guideline advises tilt before recline to reduce sliding and shear. These are clinical recommendations, not official examination rules.
Apply it
For a user with reduced sensation and limited independent weight shifting, trial at least 30 degrees of tilt when tolerated and assess redistribution away from the ischial region. If recline is appropriate within assessed hip movement, introduce tilt first. Observe pelvic migration and support during movement and return. If the user cannot tolerate the target tilt, plan more frequent smaller changes and reassess tissue response rather than assuming equivalent protection. Combine pressure mapping, when available, with visual and tactile skin assessment. Confirm that controls, communication, environmental clearance and daily activities remain usable.
Common pitfall: Visible movement or a single lower pressure-map value does not establish adequate tissue protection. The 30-degree benchmark does not guarantee that every user's target region is sufficiently unloaded. Verify the individual's response, watch for new pressure concentrations and sliding, and adjust frequency and duration accordingly. Pressure mapping does not measure all shear or establish tissue tolerance.
Seating — International Guideline · Skin and Tissue Assessment — International Guideline
30.How do cushion materials and condition change support behavior?
Evaluate material behavior in the actual device rather than ranking foam, air and fluid categories universally. Excessive foam compression or degradation can change contour and support. Air cushions require inflation according to their instructions; fluid-filled cushions require checks for migration, freezing or loss of intended flow. These conditions can change immersion, envelopment or bottoming-out behavior. Covers also matter: a conforming, breathable cover can support contouring and air exchange, while cushion and cover properties together influence heat, moisture and shear.
Apply it
An intact-looking foam cushion has a persistently compressed region beneath one ischium. Compare its occupied support with the intended contour and check for bottoming out during functional tasks. Do not treat the intact outer cover as proof that the underlying support remains effective.
Common pitfall: Softness, material name and external appearance do not establish pressure redistribution. Device condition, cover interaction, occupied loading and maintenance capability can change performance within the same material category.
31.How should conflicting user and caregiver feedback be resolved?
Different reports may reflect different priorities, observation periods or tasks. Ask each person to identify the specific difficulty and conditions, then compare those concerns with the user's goals and observed performance. Consumer participation remains central, while caregiver handling demands may affect whether a plan can be implemented. The decision should make tradeoffs explicit and test them where possible. Treat disagreement as information about the service problem rather than as a reason to substitute one person's preferences automatically.
Apply it
A user prefers a support that improves work access, while a caregiver finds its removal difficult. Observe both work and component handling, trial alternatives, and agree on a configuration that addresses the user's priority and practical assistance needs.
Common pitfall: Automatically favoring the most vocal participant can conceal the actual tradeoff. Separate preferences from observed task demands and preserve the consumer's meaningful involvement.
Updated Code of Ethics and Standards of Practice · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
32.How does a funding rationale connect policy to functional evidence?
A funding rationale should distinguish the person's functional need, the recommended feature and the applicable payer's stated criteria. Use assessment findings and comparative trial results to explain why the feature is required under those criteria. A clinical benefit and a coverage entitlement are separate conclusions. The discriminating cue is a documented link between the actual policy requirement and the person's evidence, rather than an unsupported assertion that all payers cover a particular diagnosis or product.
Apply it
A hypothetical payer requires evidence that a standard configuration fails a necessary daily task. Document the task, the standard trial's limitation and the proposed feature's observed benefit, using that policy's terms without claiming universal coverage.
Common pitfall: A persuasive clinical story cannot establish an unstated coverage rule. Avoid treating one payer's criteria or a successful past authorization as universally applicable policy.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
33.Which procurement details preserve the intended clinical configuration?
Procurement must translate the recommendation into an identifiable, compatible configuration. Specify the dimensions, components, mounting requirements and adjustments needed to reproduce the intended arrangement, and resolve ambiguities before ordering. Product names alone may not identify the selected size or configuration. The decisive issue is reproducibility: another team member should be able to compare the order with the recommendation and recognize a substitution that could change fit, access or integration before the system reaches the user.
Apply it
A quotation lists the intended back-support model but omits its mounting arrangement. Compare it with the successful trial, clarify the required hardware and document the configuration before the order is finalized for the individual user.
Common pitfall: Matching the product family does not ensure matching fit or mounting. An apparently minor substitution can alter the geometry demonstrated during the trial.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
34.How should anticipated change influence an intervention plan?
An action plan can account for anticipated change without sacrificing present fit. Identify the expected change, its likely effect on function or dimensions, and which adjustments or reassessment points would address it. Distinguish an adjustable feature from a current configuration that is deliberately too large. The decision should explain how the system meets today's needs and how future changes will be evaluated. Uncertain predictions warrant planned review rather than assuming one configuration will remain appropriate indefinitely.
Apply it
A growing child needs an appropriately fitted system now. Specify relevant adjustment capacity and review triggers, then verify the current fit instead of ordering an oversized sitting arrangement solely to postpone future assessment or replacement decisions.
Common pitfall: Future adaptability does not justify poor present fit. Planned adjustment must be connected to reassessment rather than assumed to occur correctly without review.
2024 Seating and Mobility Knowledge Topics · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
Implementation of Intervention (Once Funded)26%
35.How should the delivered system be checked against the recommendation?
Delivery verification establishes whether the equipment received matches the authorized recommendation and intended configuration. Compare component identity, dimensions, mounting and required functions before treating the system as ready for use. Resolve clinically meaningful discrepancies rather than assuming a substitution is equivalent. The discriminating cue is a difference that could alter the trialed fit or function. Delivery is the start of implementation verification, because correct ordering does not establish correct assembly, configuration or occupied performance.
Apply it
The delivered chair includes the prescribed cushion but a different back-support mounting kit. Compare its adjustment range and geometry with the recommendation, resolve the discrepancy, and verify the occupied configuration before completing the handoff to the user.
Common pitfall: Signing off because the major product names match overlooks configuration errors. A correct invoice does not establish that the complete delivered system reproduces the intended intervention.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
36.What does pre-use safety verification need to establish?
Pre-use safety verification establishes that the assembled wheelchair is mechanically safe and its intended functions operate before an occupied trial. WHO's intermediate manual provides concrete checks: identify sharp edges or damage; confirm that postural supports are padded and firmly attached; check unobstructed caster rotation; confirm secure axles and push rims; verify that brakes hold the wheelchair; and ensure that footrests are securely attached. Correct failures before occupied use. Follow the equipment's instructions for assembly and adjustment, and repeat relevant safety checks after adjustments before another occupied trial. Mechanical readiness and occupied fit are separate requirements.
Apply it
After fitting lateral trunk supports to a manual wheelchair, inspect their padding, exposed edges and attachment security. Turn the casters through their movement to detect obstruction, check axle and push-rim security, engage the brakes and confirm that they hold, and check that the footrests are secure. A loose support bracket or ineffective brake requires correction before the user transfers into the chair. Repeat the relevant checks after correction, then assess occupied posture, access and functional performance.
Common pitfall: A complete-looking wheelchair can still have a loose axle, an obstructed caster or a brake that fails to hold. Do not use an occupied trial to discover an unresolved mechanical fault. Conversely, passing the unoccupied checks does not establish acceptable occupied fit, pressure distribution or access to controls.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · 5e148832db60a2044c2d20bf
37.Why does cushion installation require more than placing it on the seat?
A cushion's intended function depends on correct identity, orientation, cover and installation within the seating system. Follow its applicable instructions and compare the installed arrangement with the recommendation. Then assess the occupied result, because the cushion changes the interface supporting the person and may affect surrounding component relationships. The discriminating cue is whether the actual installation reproduces the intended arrangement; a cushion of the correct model can still be installed in a way that changes fit or support.
Apply it
A user's delivered cushion appears different from the successful trial. Check orientation, cover and installation against the specified arrangement before changing other supports, then reassess the occupied posture and access to nearby components with the user.
Common pitfall: Adjusting the backrest to compensate for an incorrectly installed cushion treats a downstream effect. Verify the foundational component's installation before changing the rest of the system.
Wheelchair provision guidelines · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
38.How should fitting proceed when several supports interact?
Fitting is an iterative process that links the supported pelvic position with trunk, head, limb and functional access requirements. Establish the intended base, add or adjust interacting supports, and recheck the person's posture and activities after changes. A later adjustment can alter an earlier relationship, so completion is established by the occupied system's performance rather than by finishing a sequence of component settings. The key clue is a new task or contact problem after another support changes.
Apply it
After trunk supports are adjusted, the user can no longer reach the control reliably. Recheck the supported base and access relationship, then refine the interacting settings instead of accepting the control loss as an unavoidable consequence.
Common pitfall: Treating each component as an independent fitting task misses interaction effects. A previously acceptable setting should be rechecked when another adjustment changes the person's position.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
39.How should footrests be reconsidered after a cushion-height change?
A cushion-height change alters the effective distance between the occupied seating surface and unchanged footrests. If the supported sitting surface rises, footrests left at the same frame location become effectively farther below the person. Reassess using usual footwear, foot contact and thigh support; adjust as appropriate and verify again in sitting. The decisive cue is the changed occupied relationship, rather than the fact that the footrest's original hardware setting still matches an earlier measurement.
Apply it
A replacement cushion raises a user's occupied sitting surface by approximately two centimeters, and the feet no longer contact fully. Reassess and raise the footrests as needed, then verify the complete lower-limb support relationship in sitting.
Common pitfall: Lowering already distant footrests worsens the stated geometry. Matching the cushion's nominal thickness is also insufficient without checking the occupied surface and actual support.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
40.How should back-support adjustments be verified functionally?
A back support should be fitted in relation to the person's assessed posture, pelvic base and activity needs. Check its contact and location, then observe the tasks that depend on trunk and upper-limb movement. A setting that improves supported sitting can also change reaching or access to controls. The decision is whether the actual adjusted arrangement delivers the intended support while permitting required function, rather than whether its angle or height resembles a standard-looking setup.
Apply it
A higher back setting appears supportive but interferes with a user's work reach. Compare the adjusted arrangement with the assessed needs and trial another appropriate setting, documenting both support and task performance before completing fitting.
Common pitfall: Judging success from an upright appearance alone can conceal lost function. Back-support fitting must be interpreted with the pelvis and the user's actual activities.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
41.How can a support component be checked for unintended interference?
A support component must be evaluated during the activities and movements it may affect, not only during quiet sitting. Check its intended contact, clearance and the user's ability to perform relevant tasks, including communication, reaching and transfers where applicable. Compare the real component with the helpful hand simulation or trial configuration. The discriminating cue is a new limitation produced by the installed shape or position, even when the component appears to achieve its immediate postural objective.
Apply it
A lateral support reduces trunk deviation but blocks the user's arm during a communication task. Compare its height, contour and placement with the successful simulation, then refine the arrangement and repeat the activity before acceptance.
Common pitfall: Postural improvement does not cancel a new functional obstruction. Increasing support force or size can worsen interference when the actual problem is component placement.
WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
42.How should an installed drive interface be verified?
Verify the installed interface in the person's actual supported posture and required operating situations. Compare its location and settings with the successful trial, then assess intentional activation, release, direction changes and stopping as appropriate. Provide instruction and observe repeated performance before handoff. The decisive cue is reliable control of the delivered configuration; success with a demonstration system does not establish that a different mount position or setup on the final chair preserves the same access.
Apply it
A user controlled the trial chair well but has inconsistent access on delivery. Compare the final mount location and supported posture with trial records, correct discrepancies, and repeat relevant operating tasks before attributing the change to learning.
Common pitfall: Assuming delivery-day difficulty is always a training problem can conceal configuration differences. Verify the installed access relationship before prescribing more practice with an unsuitable setup.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · 2024 Seating and Mobility Knowledge Topics
43.How should integrated equipment be tested through movement?
Integration verification should include the full intended sequence of positions, rather than only the initial setup. Observe the relationship between the user, mounted devices, cables and surrounding components throughout movement. Shared motion may preserve device-to-user geometry, while clearances or cable paths still change relative to the base. The decision is whether the complete installation remains usable and unobstructed through intended operation. A satisfactory stationary position does not establish a satisfactory transition or endpoint.
Apply it
A communication device remains accessible during tilt, but its cable approaches a moving joint. Check and revise cable routing according to the installation requirements, then repeat the movement and communication task throughout the intended operating range.
Common pitfall: Preserved access does not prove complete integration. A mount can maintain screen distance while another part of the installation creates movement interference during use.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · 2024 Seating and Mobility Knowledge Topics
44.How do wheelchair securement and occupant restraint differ?
Wheelchair securement attaches the wheelchair to the vehicle; occupant restraint restrains the person during vehicle travel. UMTRI distinguishes these roles and explains WC19 provisions for wheelchairs used as motor-vehicle seats. A postural belt supports sitting position and should not be assumed to provide crash occupant restraint. The decisive question is what the component was designed and specified to do. Appropriate wheelchair securement does not eliminate the separate need for suitable occupant restraint and correct transport setup.
Apply it
A family secures a wheelchair in a van and assumes its everyday pelvic belt completes transport preparation. Explain the separate occupant-restraint requirement and verify the transport arrangement using the applicable wheelchair, restraint and vehicle instructions.
Common pitfall: Calling every pelvic belt a transport restraint confuses positioning with crash protection. WC19-related wheelchair provisions do not make an ordinary postural belt equivalent to occupant restraint.
University of Michigan Transportation Research Institute — FAQ C3
45.How does teach-back establish usable wheelchair knowledge?
Training is verified by the learner demonstrating or explaining the relevant action, rather than by the practitioner completing an explanation. Teach the task in an accessible form, invite the learner to perform it, and use observed errors to refine instruction or setup. The discriminating cue is independent or appropriately assisted performance under realistic conditions. A verbal statement of understanding is useful feedback but does not establish that the person can operate, adjust or check the system correctly.
Apply it
After explaining a removable component, ask the user to remove and replace it during the actual transfer preparation sequence. Observe the process, clarify any errors, and repeat until the agreed level of performance is demonstrated.
Common pitfall: A signed instruction sheet or a yes answer confirms neither skill nor retention. Training completion should reflect what the learner can actually demonstrate.
Wheelchair provision guidelines · 2024 Seating and Mobility Knowledge Topics
46.How should caregiver training reflect the actual assistance plan?
Caregiver training should match the tasks that the assistance plan assigns and the equipment configuration actually delivered. Establish who performs each action, provide relevant instruction, and observe the complete sequence with appropriate professional involvement. Component handling, preparation and communication between participants can matter as much as the central task. The decisive issue is whether the named assistants can carry out the agreed routine, rather than whether one caregiver watched a demonstration under different conditions.
Apply it
Two assistants share morning transfers, but only one attended delivery. Arrange training for the people who will perform the routine and verify component handling and the agreed transfer sequence with the appropriate professional before relying on it.
Common pitfall: Assuming knowledge automatically transfers between caregivers leaves implementation gaps. Attendance alone also does not establish that a person can perform the assigned task correctly.
Wheelchair provision guidelines · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
47.How can a controlled charger substitution narrow a charging fault?
Use the exact system's instructions to define compatibility and indicator meanings; neither a matching plug nor an unfamiliar light establishes correct charging. In a hypothetical service test, the outlet is verified, the same chair and battery are used, the original charger assembly fails to initiate charging, and an approved known-working charger assembly succeeds. The result implicates the original charger assembly, including any cable changed with it. It does not distinguish a charger-unit fault from a cable fault, and successful charging alone does not establish battery capacity.
Apply it
A user reports that charging no longer starts. Qualified service supplies the controlled substitution result described above. Address the original charger assembly and arrange further isolation as needed rather than replacing the batteries solely because the initial charging attempt failed.
Common pitfall: Changing the outlet, charger, cable and battery simultaneously obscures the cause. Do not invent universal light codes, charger compatibility or battery replacement criteria from another system.
2024 Seating and Mobility Knowledge Topics · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Updated Code of Ethics and Standards of Practice
48.How should maintenance responsibilities be made practical?
A maintenance plan identifies required routine checks, who can perform them, and how faults reach the appropriate service provider. Use the equipment's instructions and the person's actual abilities and support resources. Separate user-level care from work requiring qualified service. The decisive cue is an assigned and feasible action: giving written maintenance information does not create a working plan if nobody can perform the checks or contact the service provider when a problem is found.
Apply it
A client cannot inspect an inaccessible attachment and has no regular helper. Identify a feasible inspection arrangement and service contact, then verify how the client will report changes instead of assigning an impossible independent maintenance task.
Common pitfall: A generic checklist can conceal an unassigned responsibility. A practical plan requires an identified person or service and a workable response to detected faults.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Wheelchair provision guidelines
49.Which handoff records support continuity after fitting?
A useful handoff records the configuration actually delivered, fitting decisions, demonstrated skills, unresolved issues and follow-up responsibilities. Distinguish the original order from the final occupied setup, since fitting may produce justified changes. Make records available through appropriate confidentiality arrangements to those involved in continuing care or service. The discriminating issue is whether a later practitioner can reconstruct what was implemented and why, rather than seeing only a product list and a statement that delivery occurred.
Apply it
Fitting changes the control mount and footrest settings from the original order. Record the final arrangement and demonstrated tasks, identify the planned review, and communicate relevant information to authorized team members responsible for continuing support.
Common pitfall: Copying the order into a delivery note can erase meaningful fitting changes. Accurate continuity depends on documenting the actual intervention rather than its earlier intention.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Updated Code of Ethics and Standards of Practice
Evaluation of Intervention (Follow-up)15%
50.How should follow-up compare outcomes with the original goals?
Follow-up asks whether the implemented intervention changed the activities and experiences identified as priorities. Repeat suitable baseline measures and obtain the user's account of daily use, documenting relevant differences in conditions. Equipment presence, appearance or satisfaction alone may leave an activity goal unanswered. The decisive comparison connects the original target, the intervention and present performance. If the goal was independent access to a workplace, the outcome assessment should examine that access rather than stopping at successful delivery.
Apply it
A client likes the new chair but still needs help entering the workplace. Repeat the access task, identify the remaining barrier and compare assistance with baseline before recording the participation goal as achieved at follow-up.
Common pitfall: Satisfaction and goal attainment provide different information. A positive product opinion should not replace measurement of the activity that originally justified the intervention.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
51.How are absolute change and relative improvement distinguished?
Absolute change subtracts the follow-up value from the baseline when a reduction is desirable. Relative reduction divides that difference by the baseline and multiplies by 100. Keep units and the direction of benefit explicit. A percentage-point change applies to a difference between percentages, not automatically to every numerical change. The decisive step is identifying the denominator and what the measure represents before describing improvement, especially when communicating outcomes to users, teams or funding bodies.
Apply it
Assistance episodes decrease from eight to two per week under comparable conditions. The absolute reduction is six episodes weekly; the relative reduction is six divided by eight, or 75%. Report both with the observation period stated.
Common pitfall: Calling a six-episode decrease a six-percent improvement mixes units. Relative reduction uses the starting value as denominator and should accompany the actual measured values.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
52.How should an unexpected follow-up result be investigated?
An unexpected result calls for comparison of the implemented configuration, user function, training and environment with the conditions anticipated in the plan. Identify what changed and test plausible explanations rather than immediately replacing equipment or blaming the user. A single outcome may reflect several interacting causes. The discriminating clue is a specific difference that can account for the changed task performance, such as an altered component location or a newly required route.
Apply it
A user now misses a control that was reliable at delivery. Compare current posture, mount position and task conditions with delivery records, then test the identified difference before deciding that the access method itself has failed.
Common pitfall: An unfavorable outcome does not identify its cause. Replacing the whole system before checking configuration and context can discard a previously effective intervention unnecessarily.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
53.When does environmental change require reassessment?
A system can remain mechanically unchanged while becoming poorly matched to new activities or environments. Reassess when a move, job change, school transition or altered transport arrangement changes the demands placed on it. Compare the new requirements with the original assessment and current performance. The decision concerns the person-system-environment match, rather than whether the equipment has reached a particular age. A new barrier may require environmental action, equipment adjustment, training or a revised intervention plan.
Apply it
A user moves to a home with a tighter bathroom approach. Reassess the new route with the occupied system and identify whether layout changes, configuration changes or another intervention is needed to restore the required daily access.
Common pitfall: A chair's unchanged mechanical condition does not prove ongoing suitability. Reassessment can be necessary because the environment changed rather than because the device deteriorated.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · 2024 Seating and Mobility Knowledge Topics
54.How should discomfort be distinguished from suspected pressure injury at follow-up?
Concerning findings at a loaded prominence include persistent discoloration, blistering, skin breakdown, localized warmth or coolness, unusual firmness or softness, edema and localized pain. Compare the area with surrounding tissue or the corresponding site on the opposite side. Inspection alone cannot exclude early injury: tissue changes may occur beneath intact skin without obvious discoloration, particularly when visual changes are difficult to detect. Impaired sensation can also remove pain as a warning. When injury is suspected, promptly unload the affected location and arrange clinical assessment before further loading trials. For discomfort without concerning visual or tactile findings, investigate onset, fit, installation, posture and recent changes, with clinical assessment for unexplained or persistent symptoms.
Apply it
After a cover change, a user with reduced sensation has intact ischial skin without obvious color change. Palpation reveals localized warmth, firmness and swelling compared with adjacent tissue and the opposite side. Stop the seated comparison, unload the area and arrange prompt clinical assessment despite the absence of pain. If visual and tactile assessment finds no concerning changes, investigate the cover and occupied support while monitoring symptoms and tissue response.
Common pitfall: Intact skin, an unchanged appearance or absence of pain does not establish tissue tolerance. A small position change or another cushion may leave the involved site loaded. Do not continue trials over a suspected injury; subsequent sitting and offloading require an individualized clinical plan.
Skin and Tissue Assessment — International Guideline · Seating — International Guideline · Updated Code of Ethics and Standards of Practice
55.How should limited equipment use be interpreted?
Limited use is an outcome requiring explanation, rather than proof that the person lacks motivation. Ask which tasks the equipment helps, which situations prevent use, and whether fit, access, assistance, training or environmental barriers are involved. Compare actual routines with assumptions made during planning. The decisive evidence is the reason for nonuse in context. An effective component may remain unused because nobody can install it during the daily routine or because it obstructs a higher-priority activity.
Apply it
A user leaves a prescribed support at home because replacing it after transfers requires unavailable assistance. Observe the handling sequence and revise the component arrangement or assistance plan instead of documenting the person as unwilling to comply.
Common pitfall: Labeling nonuse as noncompliance prematurely closes assessment. Determine whether the intervention is practical within the person's real routines before judging willingness or motivation.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Updated Code of Ethics and Standards of Practice
56.How can user and caregiver outcome reports be combined?
Outcome reports should identify whose experience is described and which task or period it concerns. The user may report comfort or participation while a caregiver reports assistance demands; these can both be valid and still differ. Preserve the user's accessible participation and compare reports with observed tasks where useful. The discriminating question is whether the reports measure the same outcome. Combining them into an unexplained average can obscure an important benefit or burden.
Apply it
A user reports better work access while a caregiver reports longer preparation time. Record both outcomes, observe the preparation routine and discuss the tradeoff with the user rather than treating the reports as mutually contradictory judgments.
Common pitfall: A single blended rating can conceal whose outcome improved. Different experiences should remain identifiable before the team decides whether the intervention needs revision.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains · Updated Code of Ethics and Standards of Practice
57.How are repair needs distinguished from changed intervention needs?
Repair restores an intended function that has been lost through damage, wear or malfunction. Reassessment asks whether the intended configuration still meets the person's needs. These questions can coexist, but they are not interchangeable. Compare current equipment condition with documented performance and examine changes in the person or context. The decisive distinction is whether restoring the earlier configuration is likely to restore an appropriate intervention, or whether that earlier arrangement no longer matches present requirements.
Apply it
A loose mount explains a control's movement, but the user also has a changed access range. Arrange appropriate repair and reassess the access relationship rather than assuming that restoring the old mount location will resolve both problems.
Common pitfall: Repairing a fault does not prove that the old configuration remains appropriate. Conversely, an isolated repairable failure does not automatically justify replacing the entire system.
SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
58.How should continuing follow-up be planned?
Continuing follow-up should identify what will be reviewed, who is responsible and which changes should trigger earlier contact. Link review content to the person's goals, anticipated changes and unresolved implementation issues. There is no single review interval established here for every user. An individualized plan needs actionable triggers as well as a schedule. A clear contact pathway matters because a new problem may arise before the next planned appointment.
Apply it
A user has an unresolved training goal and anticipated workplace changes. Plan a review of those issues, identify responsible contacts, and explain how to seek earlier help if access, comfort or equipment operation changes before the appointment.
Common pitfall: A calendar date without review objectives or contact instructions is incomplete follow-up planning. Individual needs and emerging changes determine what requires attention sooner.
Wheelchair provision guidelines · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
Professional ConductNo assigned weight; integrated across the other domains.
59.When does a conflict of interest require recusal?
A conflict of interest arises when another interest can affect professional judgment or consumer welfare. Identify the interest, disclose it through the appropriate process and evaluate whether judgment is likely to be impaired. Disclosure alone does not make every conflict acceptable. The decisive threshold for recusal is likely impairment of professional judgment, rather than merely the existence of any relationship. Consumer-centered recommendations require a defensible comparison of suitable options and appropriate management of conflicting interests.
Apply it
A practitioner receives compensation tied to one product and recognizes that this is likely to impair an impartial recommendation. Disclose the conflict and withdraw from the affected decision, arranging an appropriately independent assessment or recommendation process.
Common pitfall: Disclosure is not a universal cure for compromised judgment. Equally, recusal should not be presented as automatic for every disclosed relationship regardless of its effect.
60.How should competence guide unfamiliar seating and mobility work?
Competence requires recognizing the limits of one's current knowledge and obtaining appropriate education, collaboration or referral before taking responsibility for unfamiliar work. A credential establishes a professional qualification without proving mastery of every device or clinical situation. Identify the particular gap and how it will be addressed. The discriminating cue is whether the practitioner can carry out and justify the required task competently, rather than whether a product is familiar by name or a colleague can be contacted later.
Apply it
A practitioner is asked to configure an unfamiliar access system. Define the knowledge and supervised practice needed, involve a competent colleague or refer appropriately, and verify the resulting skills before independently assuming responsibility for that configuration.
Common pitfall: Holding a specialty credential does not eliminate device-specific learning needs. Informal familiarity or manufacturer promotion alone should not be mistaken for demonstrated professional competence.
Updated Code of Ethics and Standards of Practice · SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
What to focus on during revision
The following are CertMedbry study suggestions. Use the official outline to check the full scope of your examination.
- Trace each recommendation from an assessed activity or limitation to a required feature, a trial result and a follow-up measure.
- Distinguish flexible correction from fixed-posture accommodation using physical assessment and hand simulation.
- Calculate an initial seat depth, then verify pelvic position, knee clearance, transfers and side-specific fit.
- Compare immersion, envelopment and targeted offloading alongside shear, microclimate, material condition and stability.
- Distinguish tilt from recline, assess target-region unloading and shear, and individualize a sustainable repositioning regimen.
- Connect reduced sensation, limited repositioning and available joint movement to equipment requirements.
- Interpret electrical fault-isolation cases from measurement location, load conditions and controlled component substitutions.
- Practise system integration across transfers, control access, environmental constraints and moving seating components.
- Separate delivery verification, occupied fitting, demonstrated training and ongoing maintenance responsibilities.
- Recognize visual and tactile signs of suspected pressure injury, promptly unload the affected area and obtain assessment before further loading trials.
- Compare outcomes under documented conditions and calculate absolute versus relative change accurately.
- Integrate consent, consumer participation, competence, confidentiality and conflict management into every service phase.
A practical preparation plan
1. Map the official scope
Read the effective January 1, 2024 task outline alongside the 2024 knowledge topics. Mark areas outside this selective guide. Allocate most study time approximately across the four weighted domains while revisiting professional conduct throughout.
2. Build an assessment-to-feature chain
For each practice case, state the participation goal, relevant baseline, physical and environmental findings, required feature and verification task. Identify what evidence would change the recommendation.
3. Practise posture and measurement decisions
Work through flexibility, hand simulation, pelvic asymmetry, hip bending versus opening restrictions, initial seat-depth calculations and lower-leg-support cases. Explain the geometry of correction or accommodation and verify the occupied result and transfers.
4. Explain technical mechanisms
Compare cushion loading mechanisms and material-condition findings. Explain how tilt and recline change loading, why recline can increase shear, and how to verify effective redistribution. Work through the electrical cases using their stated measurements and substitution conditions. Distinguish what each observation establishes from the component diagnosis it leaves unresolved.
5. Rehearse implementation as a complete system
Check order accuracy, installation, occupied fit, movement clearance and functional access. Plan user and caregiver demonstrations, maintenance responsibilities and a handoff that records the final configuration.
6. Answer and explain the drills
Complete the 20 questions independently, then explain why each alternative is less appropriate. Use the flashcards for spaced recall of decision rules rather than memorizing option positions.
7. Close the loop with outcomes
Repeat relevant baseline tasks, distinguish contextual changes from intervention effects and identify reasons for nonuse. Use visual and tactile assessment to recognize suspected pressure injury, including changes beneath intact skin, and promptly unload concerning areas. Plan revisions and follow-up triggers, then return to the official outline to address remaining knowledge gaps.
Use your sample score as a starting point
The free set contains 20 original practice questions. It is a small learning sample, not an official examination or a validated pass prediction. Review each explanation and its source before moving to another topic.
Start the free sampleOfficial sources and updates
- RESNA — About
- SMS General Info
- Applying for the Seating and Mobility Specialist (SMS) Certification Exam
- SMS Exam Eligibility Requirements
- SMS Exam Outline — 2024 Seating and Mobility Job Task Domains
- 2024 Seating and Mobility Knowledge Topics
- Updated Code of Ethics and Standards of Practice
- Wheelchair provision guidelines
- Wheelchair Service Training Package — Intermediate level
- WHO Wheelchair Service Training Package — Intermediate Level: Trainer's Manual
- University of Michigan Transportation Research Institute — FAQ C3
- Position Papers, White Papers, and Provision Guides
- RESNA > Certification > Seating and Mobility Specialist (SMS) > About the SMS Exam
- ResourceArticle_Wheelchair-Service-Training-of-Trainers-Package-WSTPi-Intermediate.pdf
- Seating — International Guideline
- 5e148832db60a2044c2d20bf
- Skin and Tissue Assessment — International Guideline
- Diagnosing Voltage Drops: Electrical Automotive Troubleshooting | Fluke
Confirm current eligibility, fees, scheduling and policies directly with the examination provider. CertMedbry is independent and is not endorsed by these organisations. How we handle content and corrections.