NHA CET Exam Blueprint 2026 — EKG Tech Domain Weights & Topics

The NHA Certified EKG Technician (CET) exam covers 4 domains. This page maps every domain, its official weight, and the key topics tested — so you can study exactly what's on the exam.

CET Exam Domains

• EKG Acquisition — 52%
• Cardiac Rhythm Interpretation — 18%
• Patient Preparation & Communication — 17%
• Equipment Operations & Maintenance — 13%