If you are a patient, this page is for technician exam prep and is not a way to interpret your own EKG. Ask your clinician about your results, or read MedlinePlus on electrocardiograms.
CET at a glance
Questions
120
100 scored
Time
2 hr
Passing
390
scale 200-500
Live EKGs
10
CET test plan
| Domain | Scored items |
|---|---|
| Safety, Compliance, and Coordinated Patient Care | 32 |
| EKG Acquisition | 44 |
| EKG Analysis and Interpretation | 24 |
Rules
| Item | Detail |
|---|---|
| Eligibility | High school diploma/equivalent + training or work experience, plus 10 EKGs on live individuals |
| Delivery | PSI test center or live remote proctoring |
| Retakes | 3 attempts, 30 days apart |
| Renewal | Every 2 years, 10 CE credits |
Study topics
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Frequently asked questions
How many questions are on the NHA EKG exam?
120: 100 scored and 20 pretest, in 2 hours.
How many EKGs do I need for the CET?
At least 10 successfully performed on live individuals.
What is on the CET exam?
Safety and coordinated care (32 items), EKG acquisition (44) and analysis/interpretation (24).
Sources
- NHA - CET Test Plan (2017 job analysis) (accessed 2026-09-23)
- NHA - Certified EKG Technician (CET) (accessed 2026-09-23)
- NHA - Candidate Handbook (accessed 2026-09-23)