If you have just finished a phlebotomy training program or have been drawing blood on the job, the Certified Phlebotomy Technician (CPT) exam from the National Healthcareer Association (NHA) is often the step that turns your skills into a recognized credential. Two hours and 120 questions can feel like a lot, especially when the exam covers everything from OSHA rules to centrifuge times. The good news is that NHA publishes exactly what it tests, and a study plan built around that blueprint makes passing on your first try very realistic.

In this guide, we’ll walk you through the exam format, each of the five domains and how many questions they carry, the official resources worth using, and the questions candidates ask most often.

What Is the NHA CPT Exam?

The NHA CPT is a national certification exam for entry-level phlebotomy technicians. It measures whether you can safely and accurately collect, handle, and process blood and other specimens, and whether you understand the safety, privacy, and communication standards that go with patient care.

The exam is not only about the needle stick. Expect questions on requisitions, patient identification, tube selection, fainting patients, and specimen handling, often as short scenarios asking what to do first or next.

What Is the NHA CPT Exam Format?

Here is the exam at a glance, based on the NHA CPT Detailed Test Plan and the NHA Candidate Handbook:

  • Questions: 120 multiple-choice questions.
  • Scored vs. unscored: 100 scored questions and 20 unscored pretest questions. Pretest items are mixed in and don’t count toward your score, so treat every question as if it matters.
  • Time: 2 hours (120 minutes), or about one minute per question.
  • Delivery: Computer-based and proctored, either at your school or an approved testing site, at a PSI testing center, or through live remote proctoring.
  • Scoring: Scaled scores range from 200 to 500, and you need a scaled score of 390 or higher to pass.
  • Results: If you test at your school or training site, you’ll get a preliminary result as soon as you finish. For PSI test centers and live remote proctoring, NHA says results are posted within 48 hours.

Your score report shows pass or fail plus whether you performed above, near, or below the passing standard in each domain.

What Content Outline Does the NHA CPT Exam Use?

The current exam is based on the NHA CPT Detailed Test Plan, which launched with the new CPT exam on January 7, 2026. It reflects a job analysis NHA completed in 2024. NHA described the update as having minimal impact on domains and content areas, but it did release new version 3.0 study materials to match.

The test plan divides the 100 scored items into five domains:

  • Domain 1, Safety and Compliance: 26 items (26%)
  • Domain 2, Patient Preparation: 20 items (20%)
  • Domain 3, Routine Blood Collections: 28 items (28%)
  • Domain 4, Special Collections: 12 items (12%)
  • Domain 5, Processing: 14 items (14%)

The test plan also lists core knowledge that applies across all domains, such as medical terminology, vascular anatomy, and hemostasis.

Domain 1: Safety and Compliance (26 Items)

This is the second-largest domain, and it covers the rules that keep you, your patients, and your specimens safe. It includes regulations from agencies such as OSHA, NIOSH, the CDC, the Joint Commission, and the Clinical and Laboratory Standards Institute (CLSI).

  • Follow workplace safety and operational standards, plus HIPAA rules for protected health information (PHI).
  • Stay within the phlebotomy scope of practice and follow ethical standards.
  • Perform quality control on lab equipment, point-of-care (POC) devices, and CLIA-waived tests, including refrigerator and freezer temperature logs.
  • Dispose of sharps and biohazards according to the bloodborne pathogens standard, and follow the exposure control plan after a needlestick or splash.
  • Apply standard and transmission-based precautions (contact, droplet, airborne) and the right PPE.
  • Respond to emergencies, perform CPR, give first aid, and document incidents.

What questions look like: A phlebotomist gets a needlestick after a draw. The best first step is to wash the site with soap and water, then report it right away under the facility’s exposure control plan.

Domain 2: Patient Preparation (20 Items)

Everything that happens before the needle comes out lives here: the requisition, identification, consent, and getting the patient ready. It also includes some front-desk tasks, such as registration, insurance, and copays.

  • Obtain and verify the order or requisition, including STAT, routine, and timed draws.
  • Introduce yourself and positively identify the patient using the required identifiers.
  • Obtain implied, informed, or expressed consent, or permission from a legal guardian when needed.
  • Verify compliance with requirements such as fasting, medications, or basal state.
  • Interview the patient about allergies, fainting history, and other special considerations.
  • Position the patient safely and choose a venipuncture site based on CLSI standards.
  • Instruct patients on non-blood specimens such as urine, stool, sputum, and semen.

Study tip: Know which tube color goes with common tests (for example, light blue for coagulation studies) and which patient factors, like a fistula or mastectomy side, rule out a site.

Domain 3: Routine Blood Collections (28 Items)

This is the largest domain and covers venipuncture and capillary puncture procedures from start to finish. It is also the domain many candidates find hardest because questions test exact sequences and numbers.

  • Select, assemble, and inspect equipment, including evacuated tubes, needles, syringes, and winged collection sets.
  • Apply and remove the tourniquet correctly, palpate, cleanse the site, and anchor the vein.
  • Follow the correct order of draw for both venipuncture and capillary collection.
  • Mix additive tubes by inversion according to manufacturer guidelines.
  • Recognize and respond to complications such as hematoma, petechiae, syncope, and nerve pain.
  • Perform dermal punctures, provide post-procedure care, and label every specimen.

What questions look like: Expect items that ask which tube is drawn right after the light blue tube, what to do when no blood flows, or when to stop a draw immediately.

Domain 4: Special Collections (12 Items)

Special collections go beyond the routine draw. They are fewer in number on the exam, but each has its own rules that are easy to mix up.

  • Perform blood culture collections, including skin prep, bottle order, and volume.
  • Collect newborn screening samples on filter paper for conditions such as PKU and galactosemia.
  • Calculate volume limits for higher-risk patients, such as infants and older adults.
  • Perform donor phlebotomy and POC testing (hemoglobin, glucose, urine pregnancy, urinalysis).
  • Perform tolerance tests, such as glucose tolerance and 2-hour postprandial glucose.
  • Prepare the site for blood alcohol testing and collect drug screening specimens.

Study tip: Blood alcohol is a classic trap. Don’t cleanse the site with alcohol; use a non-alcohol antiseptic instead.

Domain 5: Processing (14 Items)

Processing covers what happens after collection so the specimen arrives at the lab usable and properly documented.

  • Centrifuge, aliquot, refrigerate, or freeze specimens for testing or transport.
  • Protect specimen integrity based on temperature, light, and time requirements.
  • Follow chain of custody for forensic and blood alcohol specimens.
  • Follow clinical research packaging and shipping protocols.
  • Enter and retrieve data in the laboratory information system, and report critical values from POC and CLIA-waived tests.
  • Make sure results reach the ordering provider, and contact patients for recollection when needed.

What questions look like: A bilirubin specimen needs protection from light, while an ammonia specimen goes on ice. Questions often ask you to match a specimen to its handling requirement.

How Should You Use the NHA CPT Blueprint to Build a Study Plan?

Routine Blood Collections and Safety and Compliance make up 54 of the 100 scored items, so they deserve the most study time. Still, Special Collections and Processing together account for 26 items, which is too many to skip.

  1. Download the test plan. Use the task list as a checklist and mark each task as strong, developing, or weak.
  2. Take a mixed baseline. A short set of questions across all five domains shows where you really stand.
  3. Map every miss to a task. If you missed a question about a hematoma, tag it to Domain 3, not just “phlebotomy.”
  4. Prioritize heavy domains where you are weak. Focus first where a large domain meets a low score.
  5. Memorize the must-know lists. Order of draw, tube additives, inversions, and special handling come up across several domains.
  6. Finish with timed practice. Work toward answering 120 questions in two hours with time left to review flagged items.

What Official NHA CPT Resources Should You Use?

  • NHA CPT Detailed Test Plan: The official list of domains, item counts, tasks, and knowledge statements.
  • NHA Candidate Handbook: Eligibility, scheduling, ID rules, scoring, retakes, and renewal policies.
  • NHA CPT certification page: Eligibility summary, testing options, and links to NHA’s study guide and practice tests.
  • Commonly used NHA CPT study textbook: Phlebotomy Essentials, 8th Edition (ISBN 978-1284263480)

Frequently Asked Questions About the NHA CPT Exam

What score do I need to pass the NHA CPT exam?
You need a scaled score of 390 or higher on a scale of 200 to 500. The scaled score is not a percentage, so there is no fixed number of questions you must get right.

Did the NHA CPT exam change recently?
Yes. A new version of the exam launched on January 7, 2026, based on a 2024 job analysis. NHA said the update had minimal impact on domains and content areas, and the exam still has 100 scored items across five domains in two hours.

How soon will I get my NHA CPT exam results?
At a school or training site, you’ll see a preliminary result right after you finish. If you test at a PSI center or through live remote proctoring, results are posted within 48 hours.

What happens if I don’t pass the NHA CPT exam?
You can retake the exam after a 30-day waiting period. NHA allows three attempts; after a third unsuccessful attempt, you must wait one year before testing again.

How do I keep my NHA CPT certification active?
You renew every two years by completing 10 continuing education (CE) credits and paying the renewal fee. See the NHA CPT page for current renewal details.

Start Preparing for the NHA CPT Exam With Pocket Prep

Now that you know what’s on the exam, put it into practice with Pocket Prep’s NHA CPT practice questions. You’ll get 1,100 practice questions with detailed explanations for every answer, plus a full-length mock exam to test your timing. Use the Weakest Subject quiz and Missed Questions quiz to zero in on the domains that need the most work. You’ve already built the skills in training, and now you can walk in ready to prove them.