Credentials & Examinations

Examination Corresponding Specialty Exam Credential Earned
SPI Sonography Principles & Instrumentation Examination Abdomen (AB) RDMS Registered Diagnostic
Medical Sonographer
Breast (BR)
Fetal Echocardiography (FE)
Neurosonology (NE)
Discontinuing in 2015.
Obstetrics and Gynecology (OB/GYN)
Pediatric Sonography (PS)
Coming in 2015!
Adult Echocardiography (AE) RDCS Registered Diagnostic
Cardiac Sonographer
Fetal Echocardiography (FE)
Pediatric Echocardiography (PE)
Vascular Technology (VT) RVT Registered Vascular
MSK Musculoskeletal Sonography Exam RMSK Registered in
PVI Physicians' Vascular Interpretation Exam RPVI Registered Physician in
Vascular Interpretation


The only means of obtaining an ARDMS credential is by examination. Required prerequisites must be met before an applicant can earn an ARDMS credential.

Please note: Applicants may pursue the FE specialty under either the RDMS or RDCS credential. Once you pass the examination under either the RDMS or RDCS credential area, it cannot be switched.

Applicants may apply and take the SPI examination and the specialty examination in any order. However, once the first examination is passed (either the SPI or specialty), you are required to take and pass the second examination within five years of passing the first examination.