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ARDMS Certification

American Registry for Diagnostic Medical Sonography

What is the ARDMS?

The ARDMS (American Registry for Diagnostic Medical Sonography) is a non-profit organization that administers exams and provides credentials for the various areas within the field of sonography. The main fields within sonography that the ARDMS awards credentials are:

  • Diagnostic Medical Sonography (General)
  • Diagnostic Cardiac Sonography
  • Vascular Sonography

What Credentials Does the ARDMS Award?

  • RDMS - Registered Diagnostic Medical Sonographer
  • RDCS - Registered Diagnostic Cardiac Sonographer
  • RVT - Registered Vascular Technologist
  • RPVITM - Registered Physician in Vascular Interpretation

According to the ARDMS, within the RDMS credential, there are areas of specialty that you can be certified in. Those areas include: abdomen, breast, neurosonology, obstetrics, gynecology, and fetal echocardiography. Within the RDCS, you can specialize in adult, pediatric, and fetal echocardiography. Within the RVT, you can receive a credential on noninvasive vascular technology.


Do I need to be certified through the ARDMS?

ARDMS credentials provide you with solid backing by a nationally recognized authority in ultrasound technology and education. Becoming certified will certainly be a major positive on your resume and will make you more competitive when you begin looking for a job. However, only two states at present require certification through the ARDMS. They are New Mexico and Oregon. For more information, you can visit the official ARDMS site directly.

About the ARDMS Exam

The exam is created by actual senior level sonographers, vascular technologists, physicians, and scientists that are considered experts in the field. Together, they are on a task force to create the exams. The exam is made up of two main sections. They are as follows:

  1. Sonography Principles & Instrumentation
  2. One Specialty within Sonography Exam

ARDMS Exam Prerequisites

While prerequisites vary depending on the program you are getting certifed for, the following is a minimum requirement:

  1. Complete a two year ultrasound associates degree from an accredited school.
  2. Have 12 months of full time clinical ultrasound experience


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George Mason University is Virginia's largest public research university. Located near Washington, D.C., Mason enrolls more than 33,000 students from 130 countries and all 50 states. Mason has grown rapidly over the past half-century and is recognized for its innovation and entrepreneurship, remarkable diversity, and commitment to accessibility.  George Mason University is an innovative and inclusive academic community committed to creating a more just, free, and prosperous world. 


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