Practise Registered Diagnostic Medical Sonographer (RDMS) with a short sample and answer explanations. These are independent learning materials, not official exam questions or a pass prediction.
Exam outline and official sources
American Registry for Diagnostic Medical Sonography (ARDMS), part of Inteleos · Credential-level mapping verified for 2026-10-15: RDMS is a credential requiring Sonography Principles and Instrumentation (SPI) plus a qualifying specialty examination, rather than one examination named RDMS. This selective overview maps to the currently linked version 24.1 outlines for SPI, Abdomen (AB), Breast (BR), Obstetrics and Gynecology (OB/GYN), Fetal Echocardiography (FE), and Pediatric Sonography (PS). The PDFs identify version 24.1 without a separate effective date. The BR outline used here applies before the announced replacement on December 16, 2026. The assigned credential-level slug is preserved.
This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.
- Registered Diagnostic Medical Sonographer (RDMS)
- ARDMS — Inteleos
- Sonography Principles and Instrumentation Examination Content Outline, version 24.1
- Abdomen Sonography Examination Content Outline, version 24.1
- Obstetrics and Gynecology Examination Content Outline, version 24.1
- Breast (BR) Examination
- Breast Sonography Examination Content Outline, version 24.1
- Fetal Echocardiography Examination Content Outline, version 24.1
- Pediatric Sonography Examination Content Outline, version 24.1
- EFSUMB Course Book, second edition: Knobology
- ISUOG Practice Guidelines (updated): use of Doppler velocimetry in obstetrics, 2021
- FDA: Marketing Clearance of Diagnostic Ultrasound Systems and Transducers
- AIUM: Prudent Use and Safety of Diagnostic Ultrasound in Pregnancy
- AIUM: Transducer Cleaning, Preparation, and Coupling Gel, 2025 Revision
- AIUM: Statement on Preventing Work-related Musculoskeletal Disorders, 2026
- ACEP Sonoguide: Gallbladder
- ACEP Sonoguide: Abdominal Aortic Aneurysm
- AIUM Practice Parameter: Ultrasound Examination of the Abdomen and/or Retroperitoneum, 2022
- AIUM Practice Parameter: Ultrasound of the Female Pelvis, 2024 Revision
- ISUOG Practice Guidelines: Routine Mid-trimester Fetal Ultrasound Scan, 2022
- ISUOG Practice Guidelines: Performance of 11–14-week Ultrasound Scan, 2023
- ISUOG Practice Guidelines: Role of Ultrasound in Twin Pregnancy, 2025
- ACR: Clinical Testing — Breast Ultrasound, revised March 13, 2026
- ACR/RSNA RadiologyInfo: Breast Ultrasound, reviewed June 15, 2026
- ISUOG Practice Guidelines: Fetal Cardiac Screening, 2023
- ACEP Sonoguide: Intussusception
- ACEP Sonoguide: Appendicitis
- AIUM Practice Parameter: Neurosonography in Neonates and Infants, 2024 Revision
Registered Diagnostic Medical Sonographer (RDMS)
Start with 20 free questions, then review the explanations and any topics you missed.
A pulsed-wave Doppler trace wraps across the baseline despite unchanged flow direction. Which adjustment most directly increases the measurable Doppler frequency range?
Registered Diagnostic Medical Sonographer (RDMS)
Flashcards
SPI — Manage Ultrasound Transducers
2.A–2.B — Transducer and frequency selection
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