Reviews patient's medical record to obtain necessary clinical information including patient history, lab results, and physician orders, obtains necessary clinical information from patients, and compares requisitions to physicians' orders to ensure exam accuracy. Licensure, Registration, and/or Certification Required: Medical Sonographer (RDMS) registration with Abdomen issued by the American Registry of Diagnostic Med Sonography (ARDMS) needs to be obtained within 0 months unless department leader has determined it is not required, and.