Cardiac Catheterization and Electrophysiology

Jun 10, 2026

MercyOne Cardiac Catheterization and Electrophysiology lab, also known as a “cardiac cath”  and” EP lab,” is a specialized area in the hospital where doctors perform advanced cardiac procedures to diagnose and treat cardiovascular disease.   

This department consists of 3 Cardiologists who help treat patients in the Cedar Valley.  Alongside the physicians is a team of 5-6 nurses and 5-6 X-ray technologists that perform Catherizations and EP procedures with the physicians. Furthermore, a group of Physician assistants and Nurse 

Practitioners help navigate our patients’ experiences and treatments.  MercyOne is chest pain accredited and commits to treating cardiovascular emergencies 24 hours a day, 365 days a year.

Core definitions:

Cath Lab (The "Plumbing"): A specialized area where doctors perform minimally invasive tests and advanced procedures to diagnose and treat cardiovascular diseases. It focuses on structural issues, such as heart attacks, angina, and narrowed arteries.

EP Lab (The "Electrical"): A dedicated space for diagnosing and treating abnormal heartbeats (arrhythmias). It focuses on the heart’s electrical system, performing procedures like ablations and pacemaker implants.

Cath and EP labs combine cutting-edge fluoroscopy, 3D mapping systems, and advanced imaging to manage the full spectrum of complex coronary and structural cases. The focus is reducing door-to-balloon times when someone is having a heart attack by utilizing advanced imaging to improve patient outcomes. All procedures require unique catheters, wires, inflation tools, imaging systems with fluoroscopy, electrical mapping systems, etc.   

Additional cardiac services are equally important: Telemetry in Cardiac Rehab, advanced CPR assistive devices and AED machines, and extended heart monitoring devices that are used at home. 

2627 Center Street

Cedar Falls, Iowa

Anne Ferris, RN, Mercy One Cardiac Catheterization and Electrophysiology Lab

Anne has 15 years' experience in EP and Cardiac lab, Emergency Care, and Cardiac Rehab. 

Dinner includes:

• Baked Cod
• Hash Brown Potatoes
• Carrots
• Salad with choice of dressing
• Dinner Roll
• Ice cream
• Water, pop, coffee, or tea

3421 W. Ninth St

Waterloo, Iowa