ARRT-BS Breast Sonography (ARRT-BS), ARRT-S Sonography (ARRT-S), Musculoskeletal Sonography (MSK), Reg Diag Med Sono-Abdomen (AB) (RDMS-AB), Reg Diag Med Sono-Breast (BR) (RDMS-BR), Reg Diag Med Sono-OB/GYN (OB) (RDMS-OB), Registered Vascular Tech (RVT): Registered in one of the following: Certified by the American Registry of Diagnostic Medical Sonographers ARDMS (OB/GYN), (AB), (BR), (MSK), (RVT) or the American Registry of Radiologic Technologists ARRT (S), (BS). Demonstrates and maintains current knowledge, education, and skills for appropriate care of newborns, pediatric, young adults, adults, and geriatrics.