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.
- 1,297 original questions: CNA, PTCB, CCMA
- Timed full-length exams + domain score reports
- 90 days, one-time - emailed to you after purchase
Your course access is emailed to you after purchase. 14-day money-back guarantee. Refund policy
CET at a glance
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
CNA, PTCB and CCMA prep course - $19
1,297 original practice questions for CNA, PTCB and CCMA, with explanations, timed exams and domain score reports. One-time $19 for 90 days, emailed to you after purchase - no subscription.
Your course access is emailed to you after purchase. 14-day money-back guarantee. Refund policy
HealthCert Prep is not affiliated with or endorsed by the National Healthcareer Association (NHA). NHA, CCMA, CPT, CET and ExCPT is a trademark of its owner. All practice questions on this site are original.
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)