Phlebotomy (CPT) and EKG (CET)
CET exam: full mock and the rules around it
Independent site, not affiliated with the certifying body or the test vendor. Applications, payments and scheduling happen only on their own websites.
A timed practice exam at the published length, corrected at the end with your result by domain, then everything you need before booking.
CET · mock exam
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Pick an answer to start
| Study target: 96 of 120 (80%), not the official passing score |
| Time left: 120:00 of 120 min |
| Official pass: scaled score of 390 (scale 200 to 500) |
Practice questions written by Radif Partners from the public outline; not questions from the real exam. Progress stays in this browser.
The CET exam is the certification test for EKG technicians run by the National Healthcareer Association. It has 120 multiple-choice questions, 100 scored and 20 pretest, and lasts 2 hours; it can be taken at a test center or online with a live proctor. Its test plan dates from a 2017 job analysis and weights EKG acquisition most heavily, ahead of safety and coordinated patient care and of analysis and interpretation. To be eligible, a candidate needs a high school diploma or equivalent and either an EKG training program or supervised work experience, plus 10 EKGs performed on live individuals and attested. The score is scaled, scaled score of 390 (scale 200 to 500). After a failed attempt the wait is 30 days, and after 3 attempts it becomes a year. The NHA has announced a new CET exam for Winter 2027/2028. The mock above uses the full length and time and compares your result with a study target of 80% set by this site.
Time per question on the real exam
Seconds per question
55
- Questions
- 120
- Time allowed
- 2 h
- Average with no review
- 60 s
CET: 120 questions, of which 100 count toward the score.
Questions, formats and fees by Radif Partners · Editorial policy · Method and sources
How the mock is built and marked
The mock has 120 questions, the length of the real form, drawn across the three domains as the test plan weights them: safety, patient care 38, acquisition 53, analysis 29. The timer gives you 2 hours, which leaves about a minute per question. Use the flag on any question you want to revisit and the map to see what is left. At the end you get your share of right answers, the result in each domain and every explanation.
The NHA reports a scaled score built by equating forms, so no count of right answers equals a pass. This site sets a study target of 80% and says so; the official standard, scaled score of 390 (scale 200 to 500), is shown beside your result.
Eligibility, step by step
- High school diploma or equivalent.
- Either an EKG technician training program completed within the last five years, or supervised work experience in the field (one year in the last three, or two in the last five).
- 10 EKGs on live individuals, attested.
- Registration and payment in your NHA account, then a test center or remote appointment.
The NHA did not show its exam fee on a public page on October 26, 2026; the amount appears when you register, and training programs often include it.
What the test plan covers
The CET test plan lists tasks in three domains. In safety, compliance and coordinated patient care: identify the patient, explain the procedure, protect privacy, follow infection control, respond to a patient who reports chest pain or faints, and pass on critical findings. In EKG acquisition: prepare the skin, place electrodes for a 12-lead or a rhythm strip, set the machine, check calibration and paper speed, recognize and correct artifacts, and handle Holter and stress test preparation. In analysis and interpretation: measure the rate, check regularity, identify the waves and intervals and recognize the rhythms that must be reported at once.
Retakes and renewal
| Rule | NHA policy |
|---|---|
| Wait after a failed attempt | 30 days |
| Attempts at that rhythm | 3 |
| After the third failure | One attempt a year |
| Renewal cycle | 2 years, 10 continuing education credits |
A plan for the last two weeks
Take one full mock at the start to find your weakest domain. Spend the next week on short sets from the EKG practice test, mostly in that domain, and on the arithmetic of the heart rate methods. Take a second full mock at the end of the week and review every wrong answer, then a third two or three days before the exam. Rest the day before.
This site is independent of the NHA; registration, scheduling, scoring and certificates are handled only by the NHA. Our questions are written from the test plan topics and are not questions from the real exam.