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166 multiple-choice questions and 67 flashcards, organised into 5 chapters, written to the NHA CPT Test Plan domains: safety + compliance. Every question carries a full rationale.
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NHA CPT Test Plan domains: safety + compliance, patient prep, specimen collection, specimen processing + handling
CoStudy's Phlebotomy Technician Certification bank holds 233 items organised into 5 chapters that follow the published blueprint. Every multiple-choice question carries a written rationale explaining why the correct answer is correct and why each distractor is tempting but wrong.
Each chapter follows a domain of the published exam outline. Practise one on its own:
A sample of 12 multiple-choice questions from the bank, with the full rationale shown.
Which agency publishes the order of draw and laboratory standards?
Answer: C — CLSI
A) Workplace safety. B) Public health guidance. C) Correct — sets lab standards. D) Privacy.
A phlebotomist is scope-of-practice appropriate when they:
Answer: A — Perform venipuncture, process specimens, and refer clinical questions to licensed providers
A) Correct — phlebotomists collect and process specimens and appropriately defer clinical interpretation and questions to licensed providers. B) Interpreting results and diagnosing is outside a phlebotomist's scope and belongs to licensed clinicians. C) Adjusting medication is a clinical/prescribing act far outside scope. D) Ordering tests requires provider authorization; a phlebotomist may not independently order tests.
After needlestick exposure you should:
Answer: D — Wash with soap + water, report immediately, baseline labs + post-exposure protocols
A/B/C) Wrong. D) Correct — OSHA standard response.
Required tube label elements typically include:
Answer: D — Patient name, DOB or MRN, date/time of collection, collector ID
A/B/C) Incomplete. D) Correct.
Acceptable patient identifiers include:
Answer: A — Full name and date of birth
A) Correct — two-identifier standard. B) Beds can change — forbidden. C/D) Insufficient.
Two patient identifiers must include:
Answer: B — Name + DOB
A) Forbidden — room can change. B) Correct. C/D) Incomplete.
Gray tube additive + use:
Answer: B — Sodium fluoride + potassium oxalate / glucose, lactate, alcohol
A/C/D) Other tubes. B) Correct — fluoride inhibits glycolysis.
Lavender tube additive + use:
Answer: B — EDTA / CBC + hematology
A) Green. B) Correct. C) Light blue. D) Gray.
Routine venipuncture antiseptic is:
Answer: B — 70% isopropyl alcohol
A) Cultures. B) Correct. C) Cultures (allergy concern). D) Not antiseptic enough.
The first drop of capillary blood should be:
Answer: B — Wiped away
A/C/D) Contains tissue fluid — alters results. B) Correct.
Light-sensitive analytes include:
Answer: C — Bilirubin, vitamin B12, folate
A/B/D) Wrong. C) Correct — wrap in foil immediately.
Frozen specimens for sendout should be:
Answer: C — Kept frozen during transport in dry ice
A) Destroys analytes. B) Wrong. C) Correct. D) Freeze-thaw degrades.
6 sample cards from the 67 in the bank.
Vacutainer system components?
Tube (vacuum), needle, tube holder (assembly). Push tube onto needle inside vein to draw. Switch tubes without removing needle.
Refusal of draw?
Patient has right to refuse. Notify nurse + provider. Document refusal in chart with patient's stated reason. Don't force.
Needlestick injury response?
Wash with soap + water immediately. Report to supervisor. Identify source patient if possible. Baseline labs + start post-exposure prophylaxis if indicated. Document.
What does QNS mean as a specimen rejection reason, and why does it matter for additive tubes?
QNS means 'quantity not sufficient' — an underfilled additive tube skews the blood-to-additive ratio, which can invalidate results such as coagulation studies.
Major arm veins (memorize)?
Cephalic (lateral), basilic (medial), median cubital (between, in fossa). Median cubital is preferred. Brachial artery + median nerve run medial — basilic risky.
What is the recommended needle insertion angle for standard venipuncture?
15 to 30 degrees relative to the arm.
These samples are a small slice. The full bank runs flashcards, multiple choice and timed mock exams with per-chapter progress tracking, on the web and in the iOS app.
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The Phlebotomy Technician Certification bank holds 233 items: 166 multiple-choice questions, 67 flashcards. 18 of them are on this page to read free, with no signup.
Yes. Every multiple-choice item carries a written rationale that states the controlling principle behind the correct answer and then addresses each wrong option in turn — why it tempts and precisely where it fails. Knowing why the plausible answer was wrong is worth more than knowing which letter was right.
It is organised into 5 chapters that follow the published exam blueprint: Safety and Compliance; Patient/Specimen Identification and Preparation; Blood Collection Equipment, Additives, and Order of Draw; Venipuncture and Capillary Puncture Procedures; Specimen Handling, Processing, Transport, and Special Collections. The number of questions in each chapter is proportional to that domain's published weight, so working through the bank exposes you to roughly the mix the real exam uses.
The samples on this page are free to read in full, rationales included, with no account. The complete 233-item bank, the timed mock exams and per-chapter progress tracking are part of CoStudy on the web and in the iOS app.
Last reviewed 2026-08-22. Banks are written against the certifying body's published exam outline and re-checked when that outline changes — exams get renumbered, retired and reweighted, and a bank written to a superseded outline teaches the wrong proportions. Figures that are re-indexed annually are deliberately not asserted as rules; the questions test the governing principle instead.