Free Practice Questions for RDMS-PS
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Key Facts: RDMS-PS Exam
~170
Total Items
ARDMS
3 hrs
Exam Time
ARDMS
$275
Exam Fee
ARDMS
Replaced NE
Sunset Jan 2027
Neurosonology incorporated into PS
5 yrs
SPI + PS Window
Both required for full RDMS-PS
ARDMS Pediatric Sonography (RDMS-PS) replaces NE (Neurosonology, sunset Jan 2027) — NE content incorporated. 170 items, 3h, $275 fee. Pair with SPI within 5 years for full RDMS-PS. Master neonatal brain (Papile IVH grading, PVL, midline structures), pyloric stenosis criteria (≥3mm wall, ≥14mm length), intussusception target sign, appendicitis ≥6mm noncompressible, and Graf hip method (α/β angles).
Sample RDMS-PS Practice Questions
Try these sample questions to review concepts for the RDMS-PS exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1Which transducer frequency is most appropriate for transfontanelle neonatal brain imaging in a term newborn?
2In a Papile grade I germinal matrix hemorrhage, where is the bleed located?
3A neonatal head ultrasound shows blood within the lateral ventricle with ventricular dilation. What is the Papile IVH grade?
4Periventricular leukomalacia (PVL) initially appears on neonatal ultrasound as which finding?
5Which scanning planes are used for routine neonatal head ultrasound through the anterior fontanelle?
6On a midline sagittal neonatal brain image, the cavum septum pellucidum is located:
7Dandy-Walker malformation is best demonstrated sonographically by:
8On a midline sagittal image, agenesis of the corpus callosum classically demonstrates:
9Holoprosencephaly with a single midline ventricle and fused thalami is the most severe form, called:
10Which structure marks the caudothalamic groove on a parasagittal neonatal head image?
About the RDMS-PS Exam
ARDMS specialty credential for pediatric sonographers. PS launched 2015 (announced 2014) and replaces NE (Neurosonology), which sunsets January 2027. NE content was incorporated into PS. Must be paired with SPI prerequisite within a 5-year window for full RDMS-PS credential. Validates expertise in neonatal brain and spine (transfontanelle imaging, IVH grading Papile, PVL, congenital malformations), pediatric abdomen (pyloric stenosis, intussusception, appendicitis, biliary atresia), hip dysplasia (Graf method), pediatric vascular Doppler, pediatric soft tissue, and pediatric-specific patient communication.
Exam sponsor: ARDMS. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
170 questions
Time Limit
3 hours
Passing Score
Scaled
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Official sources
Our practice resources: topics covered
We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.
Patient Care, Safety, Communication (Pediatric)
Pediatric-friendly approach, parent-present scanning, immobilization, sucrose comfort
Neonatal Brain & Spine (Neurosonology)
Transfontanelle (anterior fontanelle) coronal/sagittal/parasagittal; IVH grading Papile I-IV; PVL; congenital malformations; tethered cord
Pediatric Abdomen
Pyloric stenosis (target sign), intussusception (donut/pseudokidney), appendicitis (≥6 mm), biliary atresia (triangular cord), Wilms vs neuroblastoma
Hip Dysplasia (DDH Graf Method) & MSK
Graf α/β angles, hip type I-IV, septic vs toxic synovitis
Pediatric Vascular
Portal/HA in liver transplant, renal Doppler
Other Pediatric (Thyroid, Soft Tissue, Scrotal, Echocardiography Basics)
Thyroglossal cyst, scrotal/testicular torsion, basic pediatric echo
QA, Reporting, Patient/Family Communication
ALARA TI/MI in pediatric, critical-finding communication
Preparing for the RDMS-PS Exam
What You Need to Know
- Passing score: Scaled
- Exam length: 170 questions
- Time limit: 3 hours
- Exam / certification fees: $275 Official sources
Using Our Practice Resources
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
RDMS-PS: Suggested Study Strategy
Frequently Asked Questions
Did Pediatric Sonography (PS) replace Neurosonology (NE)?
YES — PS officially replaces NE. PS launched in 2015 (announced 2014), and NE content was incorporated into PS. ARDMS NE registrants were maintained through Dec 31, 2025; the NE specialty sunsets in January 2027. NE registrants who want to continue testing typically transition to PS (with $150 discount). Note: PS is NOT 'new' in 2026 — it's been offered for over a decade.
What IVH grading should I know?
Papile classification of intraventricular hemorrhage in neonates: Grade I = subependymal/germinal matrix hemorrhage only; Grade II = IVH without ventricular dilation; Grade III = IVH with ventricular dilation; Grade IV = parenchymal hemorrhage (intraparenchymal extension). Imaged via anterior fontanelle transcranial ultrasound on coronal and sagittal/parasagittal planes. Caudothalamic groove is the most common site for germinal matrix hemorrhage.
What is the Graf method for DDH?
Graf method assesses hip development at 4-12 weeks via lateral coronal flexion view through the bony hip. Two angles: α angle (bony roof — primary) and β angle (cartilaginous roof). Type I = α >60° (mature normal); Type IIa = α 50-59° (immature in <3-month-old, often resolves); Type IIc/D = α 43-49° (dysplastic, requires Pavlik harness); Type III/IV = α <43° (subluxed/dislocated, urgent orthopedics). Routine DDH screening for breech, family history, frank DDH on exam.
How should I study for ARDMS Pediatric Sonography?
Plan 60-100 hours over 8-12 weeks. Focus on Neonatal Brain/Spine (25%) and Pediatric Abdomen (25%) — together half the exam. Master Papile IVH grading, PVL recognition, pyloric stenosis criteria (wall ≥3mm + length ≥14-17mm), intussusception target sign, appendicitis ≥6mm noncompressible, and Graf hip α/β angles.