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NHA phlebotomy (CPT) passing score: how many can you miss?

You need a scaled score of 390 on a 200 to 500 scale. Only 100 of the 120 questions count, and because the score is scaled across exam versions there is no fixed number of questions you can miss. Aim for a clear cushion in timed practice.

Updated October 2026

How the CPT is scored

NHA turns your correct answers into a scaled score from 200 to 500, the same rule it uses for every exam. Scaling keeps different versions equal, so the raw number behind 390 moves slightly. 20 pretest questions are mixed in and don't count.

390 is not "78%". The scale starts at 200.

Results and retakes

  • At your school: a preliminary score right away
  • At a PSI center or with live remote proctoring: within 48 hours
  • Retake: 30 day wait, full fee, three attempts, then a one year wait

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CPT FAQ

What score do you need to pass the NHA phlebotomy exam?

390 on a 200 to 500 scaled score.

How many questions can you miss on the NHA CPT?

There is no fixed number, because the score is scaled across versions.

How fast do you get NHA phlebotomy results?

Immediately at your school, or within 48 hours at a PSI center or online.

Free Phlebotomy practice questions

More CPT guides

Sources
  1. NHA Candidate Handbook (updated 10/05/2026)
  2. NHA CPT Test Plan (2025, job analysis 2024)

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PassPulse is an independent exam preparation tool. We are not affiliated with, endorsed by, or sponsored by the National Healthcareer Association (NHA), the American Society for Clinical Pathology (ASCP), the National Center for Competency Testing (NCCT) or American Medical Technologists (AMT). Exam, credential and product names mentioned on this page are trademarks of their respective owners and are used only to identify the exams and materials described.

This page is for general information only. It is not official guidance from any certifying body, state agency or employer, and it is not legal, medical, career or financial advice. The information on this page may contain errors or omissions, or may be out of date: fees, policies, exam content and state rules change. Practice questions, answers and explanations on PassPulse may also contain errors. Always confirm current requirements and facts directly with the certifying body, your state, your employer or the manufacturer's instructions before you register, apply or act on them. Pass rates and statistics describe past candidates and do not predict your result.
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