Registered Diagnostic Cardiac Sonographer — RDCS

The RDMS credential raises the standard of diagnostic medical ultrasound practice worldwide and promotes best practices for enhanced patient safety. The RDMS credential is designed to certify competence in the field of diagnostic medical sonography. By earning the RDMS credential, healthcare professionals gain a critical edge in promoting public safety in ultrasound. Please consult the information below to learn how to become RDMS certified, the application and examination process, and how certification pertains to your career in medical diagnostic sonography. RDMS Credential Prerequisites To obtain the RDMS credential, you must meet the examination prerequisites and pass the physics and a corresponding specialty examination within five years: Physics Examination: • Sonography Principles and Instrumentation (SPI) Specialty examinations: • Abdomen (AB)* • Breast (BR)* • Fetal Echocardiography (FE)** • Obstetrics & Gynecology (OB/GYN)* • Pediatric Sonography (PS)**