The Cardiac Sonographer performs various cardiac ultrasound procedures including transthoracic, stress, and transesophageal echocardiograms, as well as noninvasive cardiac diagnostic testing like electrocardiograms and Holter monitor applications. They prepare preliminary interpretation reports, manage billing and study transmittal, and ensure patient care adheres to regulatory and departmental standards. The role also involves equipment oversight, participation in quality assurance, staff teaching, and meeting certification and continuing education requirements.