Registered Nurse Cath Lab Jobs, RN Cardiology Careers, Electrophysiology RN Jobs, Preoperative RN Positions, Cath Lab Technologist, Cardiology, Electrophysiology Lab, Preoperative, HumanEdge - CT Job ID #25438. HumanEdge is currently filling a Contract position available with our client in Rochester, NY for a Cath Lab Technologist, Cardiology, Electrophysiology Lab, Preoperative Registered Nurse (RN).