Medical laboratory · timed practice test · free 25-question / 31-minute diagnostic · ASCP Board of Certification
ASCP MLT Practice Test — 60 Lab Questions (Free 25-Question Version)
Free 25-question diagnostic, then $5 for 5 full attempts · no signup
UniPrep2Go's free ASCP MLT practice test is a 25-question, 31-minute timed diagnostic with a free topic report and answer review — no email, no account. The full mock is 60 questions / 75 minutes on the $5 UniPrep2Go Mock Pass (5 attempts on any mock).
The ASCP Board of Certification Medical Laboratory Technician exam, MLT(ASCP), is a 100-question computer-adaptive sitting (2 hours 30 minutes) with a scaled passing score of 400. It covers blood bank, chemistry, hematology, microbiology, urinalysis, immunology, and laboratory…
Official-source aligned. Topic weights, timing, and pass rules follow published ASCP Board of Certification — MLT(ASCP) outlines. Questions are original UniPrep2Go study aids — not leaked official items. Verify on the official site ↗
Loading timed practice test…
- Questions
- 25 free · 60 full
- Time
- 31 min free · 75 min full
- UniPrep2Go readiness target
- 70%
- Domains
- 4
- Exam body
- ASCP Board of Certification
- Status
- Live · free 25-question / 31-minute diagnostic
Exam version & sources
Medical Laboratory Technician — MLT(ASCP) / MLT(ASCPi)— what this product is (and isn't)
- Exam version
- Current ASCP BOC MLT content guideline — verify at ascp.org (guideline PDF on BOC site)
- Official source
- ASCP BOC — Medical Laboratory Technician (MLT)
- Last reviewed
- October 18, 2026
- What this covers
- 60-question timed diagnostic (75 min; free 25-question / 31-min version) across 4 topic areas, with topic scoring and answer review. Official form: 100 multiple-choice, one best answer (computer adaptive).
- Pass rule
- Official exam: Scaled 400 (no fixed percent correct). UniPrep2Go mock: 70% readiness target (not an official pass score).
- Does not replace
- Independent study aid — it does not replace official ASCP Board of Certification (BOC) materials, practice exams, or required training.


Medical laboratory · ASCP Board of Certification
ASCP MLT practice test
Free 25-question diagnostic · 31 min · full 60Q on Mock Pass
Sample ASCP MLT practice questions
These sample items mirror the domains in the timed ASCP MLT mock. Correct answers and explanations unlock inside the practice session.
Sample 1
An EDTA CBC reports platelets 42 × 10^9/L. The patient is not bleeding, and the smear shows large platelet clumps. What is the appropriate next step?
- A. Release the low platelet count as true thrombocytopenia
- B. Recollect in sodium citrate and recount platelets per SOP
- C. Recollect in a heparin tube to dissolve EDTA-dependent clumps
- D. Recollect for hemoglobin because clumps trap circulating red cells
Sample 2
A 78-year-old's forward type is 4+ with anti-A and 0 with anti-B, but reverse typing is 0 with both A1 cells and B cells. What should the MLT do next before assigning an ABO group?
- A. Issue group A RBCs because the forward type overrides a reverse mismatch
- B. Report group AB from the reverse and skip further reverse workup
- C. Resolve the missing reverse antibody before assigning the ABO group
- D. Switch to group O units and cancel ABO testing on this specimen
Sample 3
A wound isolate is catalase-positive GPC in clusters and coagulase-positive. The cefoxitin disk is resistant and the oxacillin MIC is 8 µg/mL. How is this reported?
- A. MSSA, because an oxacillin MIC of 8 remains in the susceptible range
- B. Borderline-resistant staph; report oxacillin susceptible with a note
- C. Coagulase-negative staph; cefoxitin screens are not used for S. aureus
- D. MRSA; oxacillin must not be reported as susceptible
Sample 4
A patient ate breakfast, then asks whether today's plasma glucose of 118 mg/dL means the HbA1c you just ran is invalid. What should you tell the floor?
- A. HbA1c only covers the last 2–3 days, so breakfast invalidates both results
- B. HbA1c reflects weeks to months of average glucose, not this morning's meal
- C. Switch to fructosamine, because HbA1c is the same as glycated albumin
- D. Discard the HbA1c; it may be drawn only after an 8-hour overnight fast
Sample 5
An employee-health HIV Ag/Ab immunoassay is repeatedly reactive. What is the laboratory's next step in the current algorithm?
- A. Finalize HIV positive from the screening Ag/Ab immunoassay without reflex
- B. Repeat the identical screen on a fingerstick to finalize the diagnosis
- C. Perform Western blot as the sole CDC-recommended confirmatory method
- D. Reflex Ab differentiation (and NAT if discordant); do not finalize from screen
What is the ASCP MLT exam?
The ASCP Board of Certification Medical Laboratory Technician exam, MLT(ASCP), is a 100-question computer-adaptive sitting (2 hours 30 minutes) with a scaled passing score of 400. It covers blood bank, chemistry, hematology, microbiology, urinalysis, immunology, and laboratory operations.
Administered by: ASCP Board of Certification (official site ↗)
Official format: Official MLT(ASCP): 100 CAT multiple-choice questions / 2 hours 30 minutes / scaled 400 (100–999). This UniPrep check is 60 questions / 75 minutes / 70% diagnostic (linear, not CAT). California-only MLT licensure is 80 questions / 2 hours. Not MLS.
Official resources: ASCP BOC — Medical Laboratory Technician (MLT) · ASCP BOC — About the examination (100Q / 2h30 / scaled 400; CA MLT 80Q / 2h) · ASCP BOC — MLT(ASCP) / MLT(ASCPi) content guideline PDF
Who this exam is for
MLT students and working technicians sitting national MLT(ASCP) — not MLS candidates and not phlebotomy-only PBT.
How to prepare
Run this 60-question timed check (free 25-question version) for a topic report, then repair missed benches with the planned 60-card Anki waitlist and the official BOC content guideline. Add a full-length CAT-style bank before exam day.
Confirm current fees, eligibility, and scheduling with ASCP Board of Certification — MLT(ASCP) before you book the real exam.
Topic outline
Core domains candidates usually study for ASCP MLT: Blood bank, Chemistry, Hematology, Microbiology.
Blood bank
Chemistry
Hematology
Microbiology
About this free ASCP MLT practice test
Medical laboratory technicians run the bench: ABO/Rh and antibody screen, a chemistry panel, a CBC differential, and culture setup, under a technologist or pathologist. This 60-question / 75-minute linear check (free 25-question start) scores those four benches from a 120-item bank. Official MLT(ASCP) is 100 adaptive questions in 2 hours 30 minutes, scaled pass 400. California’s separate 80-question / 2-hour form is a different sitting. This page is the technician exam — not MLS method validation, not phlebotomy-only PBT.
Built for: MLT students and working technicians booking national MLT(ASCP) — not MLS scientist candidates and not phlebotomy-only PBT.
Topics on this practice test: Blood bank, Chemistry, Hematology, Microbiology.
- 60 timed multiple-choice questions
- 75-minute pacing target
- UniPrep2Go readiness target: 70% with topic breakdown
- Full answer review after you submit
Your first UniPrep2Go attempt is free: a 25-question timed diagnostic on any exam (Exam or Learn mode, no signup) with the full topic report. Full-length mocks and retakes run on a $5 UniPrep2Go Mock Pass (Gumroad license key): 5 attempts on any mock. After your score, join the linked Anki deck waitlist for the .apkg when it ships.
Join the ASCP MLT Anki waitlistOfficial Medical Laboratory Technician — MLT(ASCP) / MLT(ASCPi) facts
Structure and domain weights candidates verify against the certifying body before exam day.
The ASCP Board of Certification Medical Laboratory Technician exam, MLT(ASCP), certifies bench technicians across blood bank, chemistry, hematology, microbiology, urinalysis, immunology, and laboratory operations. Official sittings are 100 computer-adaptive multiple-choice questions in 2 hours 30 minutes with a scaled passing score of 400 on a 100–999 scale. UniPrep2Go’s check is a shorter 60-question / 75-minute linear diagnostic (free 25-question version; not CAT). Independent prep — not ASCP BOC exam material. MLT is not MLS; California-only MLT licensure is a separate 80-question / 2-hour form.
- Questions
- 100 multiple-choice, one best answer (computer adaptive)
- Time
- 2 hours 30 minutes
- Passing score
- Scaled 400 (no fixed percent correct)
- Scoring
- Scaled 100–999 (ASCP BOC CAT)
- Delivery
- Computer adaptive testing (CAT) via Pearson VUE — confirm when you book
- Administered by
- ASCP Board of Certification (BOC)
Knowledge domains and weights
| Domain | Official weight |
|---|---|
| Blood Banking | 15–20% official · UniPrep mock 25% (15 of 60) |
| Chemistry | 20–25% official · UniPrep mock 25% |
| Hematology | 20–25% official · UniPrep mock 25% |
| Microbiology | 15–20% official · UniPrep mock 25% |
| Urinalysis and Other Body Fluids | 5–10% official (folded into UniPrep chemistry items) |
| Immunology | 5–10% official (folded into UniPrep micro/blood-bank items) |
| Laboratory Operations | 5–10% official (QC/safety folded into UniPrep topics) |
What changed in the current exam cycle
- National MLT(ASCP) remains 100 CAT items / 2 hours 30 minutes / scaled 400 — third-party mocks that use 180 minutes or a percent pass are not the BOC scale.
- California state-licensure MLT is 80 questions / 2 hours — not the national form.
- UniPrep’s check is 60 questions / 75 minutes / 70% diagnostic (free 25-question version) with four benches — not CAT and not 1:1 BOC percentages.
High-yield facts (commonly tested)
- Official MLT(ASCP): 100 CAT MCQ / 2h30 / scaled 400 (100–999). UniPrep check: 60Q / 75 min / 70% linear diagnostic (free 25-question version).
- Heaviest official areas: chemistry and hematology (20–25% each); blood bank and microbiology 15–20%.
- MLT is technician-level — ASCP MLS is a separate, higher credential with its own guideline.
- Packed RBCs 1–6°C; platelets 20–24°C with agitation; do not report hemolyzed potassium as the patient’s K.
- California-only MLT licensure sitting is 80Q / 2h.
Verify current exam fees, scheduling, and administrative details at www.ascp.org/boc/explore-credentials/view-all-credentials/MLT. Independent study aid — not official exam material.
ASCP MLT practice test — quick answers
How many questions are on the ASCP MLT exam?
National MLT(ASCP) is 100 computer-adaptive questions in 2 hours 30 minutes. Pass is a scaled 400 (not a published percent). UniPrep’s check is 60 questions / 75 minutes (free 25-question version).
Is this an official ASCP MLT exam?
No. This UniPrep2Go readiness check is independent practice — not official exam material from the ASCP Board of Certification. The matching Anki deck is planned (waitlist).
Is MLT the same as MLS?
No. MLT is the technician credential. MLS(ASCP) is a separate scientist exam with different eligibility and a different content guideline.
Is there a free ASCP MLT practice test?
Yes — your first UniPrep2Go attempt is free, and it can be this one: a 25-question / 31-minute timed diagnostic drawn by the same topic weights, a 70% readiness target, topic scoring, and a full answer review report. No signup, Exam or Learn mode. The full 60-question / 75-minute mock runs on the $5 UniPrep2Go Mock Pass (5 attempts on any mock).
How many free attempts do I get on this ASCP MLT practice test?
One. Your first UniPrep2Go attempt is free: a 25-question timed diagnostic on any exam (Exam or Learn mode, no signup) with the full topic report. Full-length mocks and retakes run on a $5 UniPrep2Go Mock Pass (Gumroad license key): 5 attempts on any mock. Every attempt ends with the full topic report and answer review — the report itself is never paywalled.
How many questions are on this free ASCP MLT practice test?
This UniPrep2Go practice test has 60 multiple-choice questions timed against a 75-minute target. The free first attempt is a 25-question / 31-minute diagnostic with the same topic weights; the full session runs on Mock Pass. Official ASCP BOC MLT(ASCP) is 100 CAT questions / 2 hours 30 minutes / scaled pass 400 (100–999). This check is a shorter 60-question / 75-minute linear diagnostic (free 25-question version) on four benches (blood bank, chemistry, hematology, microbiology) — not CAT, not MLS, and not the California-only 80Q / 2h form. Independent UniPrep2Go practice — not ASCP BOC material.
More FAQAdditional format, scoring, and disclaimer questions
- Why is the free ASCP MLT practice test 25 questions?
- It is a diagnostic: 25 questions drawn by the same topic weights as the full 60-question mock — enough to rank your weakest topics, short enough to finish in 31 minutes in one sitting. With 1–6 questions per topic it is a quick read, not a verdict; for a full-length timed score, run the 60-question / 75-minute mock.
- What do I get for $5?
- The UniPrep2Go Mock Pass: 5 full timed attempts on any UniPrep2Go mock, including the 60-question ASCP MLT session, in Exam or Learn mode. It is a one-time Gumroad license key that works on any device — no subscription. Every attempt ends with the full topic report and answer review.
- What score do you need on this ASCP MLT practice test?
- The pass target on this practice test is 70%. Your report also breaks down performance by topic so you can see weak areas before the real exam.
- Who should take this ASCP MLT practice test?
- MLT students and working technicians booking national MLT(ASCP) — not MLS scientist candidates and not phlebotomy-only PBT.
- Where can I take a ASCP MLT practice test online?
- UniPrep2Go hosts the ASCP MLT Practice Test — 60 Lab Questions (Free 25-Question Version) at https://uniprep2go.study/mock-exams/ascp-mlt-readiness-check with a timed runner and full readiness report.
- Is this official exam material?
- No. This is an independent readiness diagnostic from UniPrep2Go. It is not official exam-board material and does not award certification or guarantee a passing score.
- What does the report show after the mock?
- Your report shows a pass/no-pass verdict with explanation, topic diagnosis, pacing notes, full question review with explanations, and a repair plan that links to the Anki deck waitlist for spaced-repetition practice when the .apkg ships.
- Where do the questions come from?
- Original UniPrep2Go local bank (Wave 3 quality).