CPEN Pediatric Emergency Nursing: Decisions, Cues and Practice Study Guide

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A toddler sits motionless against a caregiver, barely watches nearby activity and has visible retractions. Identify abnormal appearance and work of breathing, then move promptly to direct assessment rather than waiting for complete registration.

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Two children arrive together: one requests a radiograph for an isolated finger injury; another has vomiting, mottled skin and reduced responsiveness. Prioritize the child with impaired perfusion and consciousness despite the less specific complaint.

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A child referred for possible measles reaches a crowded intake desk. Provide a facemask if tolerated and arrange immediate appropriate room placement while notifying the clinical team, rather than completing the routine waiting-room process.

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A vaccinated nurse prepares to enter a suspected-measles room wearing only a procedure mask. Select the recommended fit-tested respirator and verify appropriate use before entry; vaccination history does not remove that requirement.

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An adolescent quietly says, 'I am thinking about killing myself right now,' while agreeing to cooperate. Maintain direct safety supervision and initiate urgent evaluation rather than placing the adolescent alone in a routine examination room.

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Through an interpreter, a caregiver reports that a child received 'two' doses, but the time interval is unclear. Restate the medication and times for confirmation, then ask the caregiver to explain the sequence.

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A child arrives with a chemical-soaked jacket and burning forearm skin. Initiate the chemical-response process, remove the jacket safely and begin copious rinsing of irritated skin while another staff member obtains product information.

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After a bus crash, one child walks with superficial cuts, another has an isolated fracture with adequate breathing and perfusion, and a third lies still with respiratory distress. Assess the still child first; if likely to survive with current resources, assign immediate priority after rapid lifesaving interventions.

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During a trauma assessment, one clinician identifies severe external bleeding while another assesses breathing. Assign immediate hemorrhage control without suspending the remaining survey or waiting until all examination findings have been collected and documented.

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An infant has new inconsolable crying without an obvious respiratory problem. After confirming immediate stability, fully examine the child and explore feeding, elimination and symptom timing before assuming the presentation represents ordinary colic or hunger.

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A caregiver explains that a nonverbal child usually reaches for a favorite toy but has stopped doing so today. Treat this as a meaningful change and investigate pain or illness rather than documenting only 'nonverbal at baseline.'

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A school-aged child understands pictures more reliably than spoken multistep instructions. Show one examination step at a time and use the child's established communication signals while obtaining the same essential physiologic and physical findings.

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An autistic child becomes increasingly distressed as multiple staff enter a bright room. Move to a quieter space, reduce interruptions and invite the caregiver's familiar calming approach while continuing the necessary clinical assessment and observations.

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A child with developmental disability begins striking their abdomen and has reduced food intake. Ask about bowel habits, assess hydration and examine for pain while using familiar communication supports, rather than treating agitation as the diagnosis.

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A verbal child understands a faces scale and points to a high pain rating despite sitting quietly. Accept the child's report, assess the cause and offer appropriate treatment rather than replacing the score with an observer estimate.

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A nonverbal child with cognitive impairment becomes unusually rigid during movement. Use revised FLACC with caregiver descriptions of typical pain behaviors, then document the findings so the next assessment can compare the same indicators.

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A child with a painful limb injury remains frightened while analgesia is arranged. Support the limb, involve the caregiver and offer developmentally suitable distraction while delivering prescribed pain treatment and reassessing the injured extremity.

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After an opioid, a child stops crying but becomes difficult to rouse. Reassess responsiveness and breathing immediately as well as pain; the absence of crying alone does not demonstrate a safe or effective treatment response.

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A child treated for asthma now wheezes less but is drowsy, speaks only briefly and has minimal bilateral air entry. Interpret the quieter chest as possible deterioration and summon immediate senior airway and resuscitation support.

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A child has a moderate asthma exacerbation after a respiratory illness. Prepare prescribed short-acting bronchodilator treatment and early corticosteroid therapy, then compare respiratory effort and air entry after treatment rather than judging response by wheeze alone.

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A child rescued from a fire has facial burns, soot around the mouth and a newly hoarse voice. Escalate airway assessment immediately while the team evaluates breathing and circulation, rather than focusing first on dressing the skin burns.

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A child deteriorates rapidly after blunt chest trauma with unilateral absent air entry and shock. Summon the clinician qualified to perform immediate decompression for suspected tension pneumothorax. If pleural blood and major hemorrhage are identified, prepare chest drainage, transfusion and urgent surgical hemorrhage control.

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An afebrile child reports sudden palpitations. Monitoring shows a fixed, regular narrow-complex tachycardia with no clearly preceding P waves. Compare these features with SVT while immediately assessing perfusion, blood pressure and mental status.

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A cooperative child with confirmed regular narrow-complex SVT is alert, normotensive and well perfused. Prepare a monitored Valsalva maneuver while ensuring the team can escalate promptly if the rhythm persists or clinical instability develops.

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A child with a femoral fracture remains poorly perfused after a small external wound is controlled. Continue assessing the chest, abdomen and pelvis, prepare circulatory support and communicate concern for occult hemorrhage rather than attributing everything to the wound.

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A young infant feeds poorly, becomes sweaty during feeds and has tachypnea with weak femoral pulses. Escalate assessment for a cardiac cause while evaluating other serious illness, even though no obvious murmur is heard.

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A child arrives still convulsing after six minutes of witnessed seizure activity and a prehospital benzodiazepine dose. Report the total duration and exact prior treatment immediately so escalation follows the complete episode rather than a newly started clock.

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A child with known epilepsy has a prolonged seizure after poor intake and vomiting. Obtain bedside glucose while supporting airway and breathing and following the seizure pathway; do not assume the usual diagnosis explains every contributor.

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A child with head trauma becomes less responsive while blood pressure falls. Reassess airway, oxygenation, circulation and glucose immediately, document the neurologic change and communicate it urgently rather than waiting solely for a brain scan.

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A 2-year-old can swallow after a suspected lithium coin-cell ingestion one hour ago. Immediately available honey meets the interim criteria, but transport proceeds without delay. A radiographic esophageal double rim then requires immediate removal rather than observation.

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An infant has green vomit and a distended abdomen without diarrhea. Prioritize urgent assessment for intestinal obstruction while evaluating perfusion and hydration, rather than beginning a routine discharge plan for presumed viral gastroenteritis alone.

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An adolescent develops sudden unilateral scrotal pain and vomiting, with a high-riding testis. Notify the surgical team immediately and prepare for urgent management rather than waiting for a routine ultrasound appointment or urine results first.

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A child arrives after an alkaline cleaner splashes into one eye and is squeezing the eyelids shut. Arrange immediate assisted irrigation and pain control while another team member obtains the exposure history and contacts ophthalmology.

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After a sharp-object injury, a child has reduced vision and an irregular pupil. Stop further manipulation, apply a protective shield and obtain urgent ophthalmology support while maintaining comfort and preparing for possible operative management of the injury.

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A child with a tibial fracture develops escalating pain despite analgesia and severe pain when the toes are passively extended. Request immediate surgical assessment even though the foot remains warm and a pedal pulse is palpable.

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Before a cast is applied, document finger movement, sensation, swelling and perfusion in the injured arm. Repeat the assessment afterward so a new sensory change can be distinguished from findings present before immobilization was performed.

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A young infant has new nonblanching spots, poor feeding and reduced activity despite a normal measured temperature. Escalate for urgent systemic assessment and examination rather than reassuring the caregiver that the rash can be reviewed routinely.

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A child received chemotherapy seven days ago and has a temperature of 38.7°C. Begin the suspected febrile-neutropenia pathway while the count is pending. Comfortable appearance still requires prompt treatment; mottling or altered consciousness shifts the RCH antibiotic target to within 30 minutes.

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A child has glucose 24 mmol/L, venous pH 7.18 and blood ketones 4.5 mmol/L. Recognize the complete DKA pattern and prepare monitored treatment; a normal initial serum potassium does not imply normal total-body potassium stores.

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During DKA treatment, a child's glucose decreases but headache intensifies and responsiveness declines. Escalate immediately for suspected cerebral injury while reassessing physiology and preparing emergency treatment rather than interpreting the glucose trend as evidence of overall recovery.

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A 16-day-old infant with a measured temperature of 38.2°C requires prompt septic investigation, admission and empiric IV antibiotics even while alert in the caregiver's arms. In contrast, a well-appearing 25-day-old with low-risk inflammatory markers may undergo inpatient observation without immediate lumbar puncture or empiric antibiotics after senior assessment. Evaluate feeding, activity, perfusion, breathing and perinatal history in both infants.

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A young infant is unusually sleepy, has taken less than half the usual feeds and has fewer wet diapers. Despite no fever, prioritize prompt assessment of hydration, perfusion, glucose and possible serious illness with senior review.

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An infant with vomiting and poor perfusion has low sodium, high potassium and low glucose. Communicate concern for an adrenal crisis while supporting circulation and correcting urgent abnormalities under the treatment plan, without excluding concurrent infection.

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An adolescent denies current suicidal thoughts but describes a recent attempt and ready access to medications considered for another attempt. Communicate these findings for further safety assessment rather than treating the current denial as sufficient evidence for discharge.

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A caregiver attributes an infant's injury to an activity the infant cannot yet perform. Record the explanation and developmental findings, examine the child fully and consult the senior clinician and safeguarding service rather than accepting the mechanism without review.

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A child discloses a recent assault while being assessed for pain. Address immediate medical needs, record the disclosure accurately and obtain urgent specialist guidance rather than conducting repeated detailed interviews or arranging multiple uncoordinated examinations first.

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Two siblings develop headache and nausea after sleeping near an indoor generator. Their conventional oxygen saturations are 99%. Escalate for suspected carbon monoxide exposure, oxygen treatment and appropriate testing rather than using the saturation values to reassure them.

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A profoundly cold child is unresponsive after environmental exposure and has no obvious lethal injury. Activate resuscitation and rewarming together, obtain expert support and avoid declaring the situation futile solely because pupils are fixed or the exposure was prolonged.

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A child with suspected opioid exposure is unresponsive and not breathing but has a definite pulse. Begin assisted ventilation while another clinician prepares naloxone, then reassess respiratory effort and circulation as treatment proceeds without waiting for the medication response.

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A suspected-measles patient leaves an examination room, and another family is about to enter immediately. Pause reuse, notify infection prevention and establish the appropriate airborne-clearance interval while documenting who shared the airspace and when the exposure occurred.

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A trained team removes a child from a pool and confirms cardiac arrest. Start CPR with effective breaths immediately while another rescuer retrieves the defibrillator and oxygen equipment, rather than waiting for those devices before providing any resuscitation.

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Minutes after a known allergen exposure, a child with asthma develops hoarseness, wheeze and faintness without a rash. Recognize possible anaphylaxis and prepare immediate intramuscular epinephrine with resuscitation support rather than treating the presentation as isolated asthma.

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A child receiving chemotherapy develops fever, mottling and reduced responsiveness. Move directly into urgent sepsis assessment and treatment, arranging cultures without delaying antibiotics while the team supports perfusion and breathing and reassesses the response to initial interventions.

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Before a painful fracture reduction requiring deep sedation, confirm analgesia, designate the independent observer, establish capnography and other physiological monitoring, and verify immediate airway-rescue capability. If the carbon dioxide waveform disappears while oxygen saturation remains 99% during supplemental oxygen administration, immediately assess airway patency, breathing and the sampling equipment. Treat airway obstruction or inadequate ventilation promptly; a preserved saturation does not establish adequate breathing.

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After an arrest without an oxygenation exception, an oxyhemoglobin saturation of 97% meets the usual oxygenation target, but PaCO2 of 28 mm Hg indicates hypocapnia and warrants reassessment of ventilation toward normocapnia. After smoke-associated arrest with suspected carbon monoxide poisoning, continue directed high-concentration oxygen treatment: a conventional pulse-oximeter reading of 100% cannot reliably identify carboxyhemoglobin-related impairment and should not alone trigger oxygen reduction. Continue monitoring blood pressure, core temperature and neurologic status.

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During resuscitation, a nurse repeats a verbal medication instruction including the drug, dose and route. The prescriber corrects a misheard element before administration, completing the loop and preventing action based on an unverified interpretation of the order.

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Before discharge after a respiratory illness, ask the caregiver to describe what changes would prompt urgent return and how follow-up will be arranged. Correct a missed warning sign, then ask for the plan again in the caregiver's own words.

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A child requires a nonurgent specialist forensic examination, but the accompanying adult's authority to consent is unclear. Clarify legal authority and obtain specialist guidance while continuing necessary medical care rather than treating the adult's presence as sufficient authorization.

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A child has bruising and gives an explanation different from the caregiver's. Document each account with its source, describe the visible findings and use approved diagrams or photographs as appropriate, then communicate the concern for specialist assessment.

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During a child's trauma resuscitation, assign a nurse to support the caregiver and coordinate communication while other staff manage clinical tasks. The caregiver can provide useful history without repeatedly approaching the clinician directing the most urgent interventions.