Welcome from the American Registry for Diagnostic Medical Sonography!

Welcome from the American Registry for Diagnostic Medical Sonography. We are delighted in your interest in applying for and taking our examinations. The resources below were curated for you, to help you better understand more about our organization and our examinations. We hope you will find the below resources helpful!

Who is the ARDMS?

ARDMS is the gold standard of sonography credentialing. We create global standards of professional excellence in sonography and provide exceptional patient care through rigorous assessments and continual learning. You have the opportunity to earn the Registered Diagnostic Medical Sonographer (RDMS) credential after you take and pass the following examinations:

• Sonography Principles and Instrumentation (SPI) examination

• Abdomen examination

More Details About ARDMS Examinations 

SPI Overview

The SPI examination assesses the knowledge, skills and abilities in the areas of clinical safety, physical principles, pulsed echo instrumentation, and quality assurance. The examination meets the fundamental physical principles and instrumentation requirements for the RDMS, RDCS, RVT and RMSKS credentials. Find out everything you need to know to apply for the SPI examination. 

Abdomen Overview

The Abdomen examination assesses the knowledge, skills and abilities in the areas of soft tissues, blood vessels and organs of the abdominal cavities. Find out everything you need to know to apply for the Abdomen examination. 

Resources About Sonography

• Song of Ultrasound – presentation at the 2019 Hangzhou International Ultrasound Education Summit, Qianjiang Ultrasound Symposium
• Real Talk Sonography –  a five-part video series that looks at sonography through the stories, insights and emotions of real 20+ sonographers.
• Report: Review of Certification in Building A Successful Sonographer Program in China
• American National Standards Insititute (ANSI) Newsletter