Analytical ability to interpret data from a variety of cardiovascular tests, to monitor data, to develop treatment plans in conjunction with the attending physician, to identify discrepancies, problems or issues, and to obtain advice when precedents are unclear or unavailable. Under general supervision and according to established policies and procedures, clinically and technically assists physicians before, during and after a variety of invasive diagnostic and interventional procedures in a cardiac catheterization, electrophysiology, and special procedures laboratories.