The role includes monitoring ECGs and lethal arrhythmias, cardiac pressure waveforms, hemodynamics, cardiac outputs, O2 saturations, ACT measurements, and clinical laboratory values including arterial blood gases, electrolytes, hemoglobin, BUN and creatinine. Clinical scope includes diagnostic cardiac catheterization, percutaneous interventions including PTCA, directional and mechanical rotational atherectomy, electrophysiologic testing, permanent pacemaker implantation, therapeutic ablation of dysrhythmias, and implantable cardioverter defibrillator procedures.