COMLEX-USA Level 1 (Comprehensive Osteopathic Medical Licensing Examination — Level 1) — Free Online Mock Test

COMLEX-USA Level 1 exam at a glance

COMLEX-USA Level 1 full-length mock tests

Attempt 50 full-length COMLEX-USA Level 1 mock tests, each a distinct question set built on the real 320-question, 480-minute pattern — with instant scoring and section-wise analysis. The first 3 are free.

COMLEX-USA Level 1 key facts & eligibility

Who is eligible for COMLEX-USA Level 1?

For students enrolled at a college of osteopathic medicine (DO programme), typically taken after the second year of study once the college certifies eligibility.

Last verified July 2026 against NBOME — COMLEX-USA Level 1. Always confirm current details on the official website before you register.

COMLEX-USA Level 1 section breakdown

The COMLEX-USA Level 1 mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. Inter-section breaks are enforced.

• Morning Session — Blocks 1-4 (160 Q)
  160 questions · 240 minutes · ~90 sec/question
• Afternoon Session — Blocks 5-8 (160 Q)
  160 questions · 240 minutes · ~90 sec/question

COMLEX-USA Level 1 scoring & marking scheme

Strategy: COMLEX-USA Level 1 has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.

Scale: COMLEX-USA Level 1 (Pass / Fail — since May 2022).

How COMLEX-USA Level 1 is conducted

• Mode
  Standard — practice without proctoring on Wrexa Edge, or enable optional webcam proctoring to simulate test-day conditions.
• Test format
  Linear / fixed-form — every candidate sees the same number of questions per section.
• Backtracking
  Allowed — you can revisit and change answers within a section.
• Mark for review
  Available — flag tough questions and return to them before submitting the section.

Tools available during the COMLEX-USA Level 1 exam

• Lab Values
  Built-in lab values reference table (USMLE-style).

Wrexa Edge renders these tools inside the mock test exactly as they appear on the real COMLEX-USA Level 1 exam — same shortcuts, same behaviour.

COMLEX-USA Level 1 time strategy

With 320 questions in 480 minutes, you have about 90 seconds per question on average. Successful candidates aim for the following pacing on each section:

• Morning Session — Blocks 1-4 (160 Q)
  Target ~90 sec/question. If a question takes more than 135 seconds, mark for review and move on.
• Afternoon Session — Blocks 5-8 (160 Q)
  Target ~90 sec/question. If a question takes more than 135 seconds, mark for review and move on.

Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.

COMLEX-USA Level 1 topics covered

Across the 50 Wrexa Edge variants of COMLEX-USA Level 1, the following topics appear most often (sample distribution from one variant):

Morning Session — Blocks 1-4 (160 Q)

• Bacteriology · 12
• Cardiovascular · 8
• Lower Limb · 7
• Respiratory · 7
• Thorax · 5
• Inborn Errors of Metabolism · 5
• Immunopathology · 5
• Renal · 4

Afternoon Session — Blocks 5-8 (160 Q)

• Bacteriology · 12
• Antimicrobials · 9
• Neuroanatomy · 8
• Respiratory · 7
• Amino Acid Metabolism · 6
• Cardiovascular · 5
• Vitamins · 5
• Head & Neck · 3

COMLEX-USA Level 1 difficulty calibration

Elite tier. Elite-tier: among the toughest exams in its category. Most successful candidates prepare for 6-12+ months.

NBOME-administered osteopathic licensing exam. Pass/Fail since May 2022. From May 7, 2026: 320 Q across 8 blocks of 40 Q. Two ~4-hour sessions with scheduled break. Foundation sciences + clinical correlation. · Official language: English.

Verified content — Wrexa Edge's COMLEX-USA Level 1 bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).

How Wrexa Edge prepares you for COMLEX-USA Level 1

• Real test-day interface
  Our vignette skin mirrors the actual COMLEX-USA Level 1 testing software — same timer, palette, tools, and navigation.
• 50 distinct variants
  16000 unique practice questions, each variant a fresh test — not just shuffled options.
• Detailed analytics
  Scaled score, section accuracy, topic-wise heatmap, time-per-question — see where to focus after every attempt.
• Spaced repetition (Notebook)
  Wrong answers and flagged questions flow into an SM-2 spaced-repetition deck so you actually retain what you learn.
• Optional proctoring
  Browser-based face-api detection (no install) — turn it on to simulate a high-stakes environment.
• Free to start
  No credit card. Sign up, pick a variant, and your first COMLEX-USA Level 1 mock starts in under a minute.

Expert take: what COMLEX-USA Level 1 really tests

COMLEX Level 1 is now pass/fail, which shifts the goal from a high number to a reliable, comfortable pass. Its defining feature is the integration of osteopathic principles and OMM/OMT with the foundational sciences, presented through clinical scenarios rather than plain recall.

COMLEX-USA Level 1 study plan

A phase-by-phase roadmap from your first concept to test-ready. Stretch or compress each phase to fit the time you have before your attempt.

Where COMLEX-USA Level 1 can take you

A strong COMLEX-USA Level 1 result opens up these careers and higher-study paths:

• Progress in the DO pathway
  Passing Level 1 is a required step toward osteopathic licensure and later COMLEX levels.
• Residency eligibility
  A Level 1 pass keeps you on track for the single-accreditation residency match.
• Osteopathic distinction
  The OMM/OMT focus reflects the distinct osteopathic approach to patient care.
• Foundation for Level 2 & 3
  The competencies here carry into COMLEX Level 2-CE and Level 3.

Best books & official prep for COMLEX-USA Level 1

• Savarese’s Comprehensive Review of Osteopathic Medicine — OMT review board
  A standard review of osteopathic principles and OMT — the content unique to COMLEX versus USMLE.
• First Aid for the USMLE Step 1 — Le, Bhushan et al.
  The foundational-science overlap is large; pair it with dedicated OMM/OMT review.

Official practice: NBOME provides COMSAE practice forms and the detailed COMLEX-USA Level 1 blueprint (Fundamental Osteopathic Medical Competency Domains and Clinical Presentations) on nbome.org — use COMSAE to gauge readiness.

Previous-year papers: NBOME does not release past papers; the official COMSAE self-assessments are the closest equivalent.

Frequently asked questions

What is the COMLEX-USA Level 1 exam pattern?

Comprehensive Osteopathic Medical Licensing Examination — Level 1 contains 320 questions across 2 sections: Morning Session — Blocks 1-4 (160 Q), Afternoon Session — Blocks 5-8 (160 Q). Total duration is 480 minutes (about 90 seconds per question).

Does COMLEX-USA Level 1 have negative marking?

No — COMLEX-USA Level 1 has no negative marking. Each correct answer is worth 1 mark, so attempt every question.

How is COMLEX-USA Level 1 scored?

Scaled score range: 0 to 100. COMLEX-USA Level 1 (Pass / Fail — since May 2022).

How can I practise COMLEX-USA Level 1 online for free?

Wrexa Edge gives you 3 free full-length COMLEX-USA Level 1 mock tests — with instant scoring, detailed explanations and analytics — plus 47 more with Pro. Start practising in under a minute, no card required.

What is the difficulty level of COMLEX-USA Level 1?

COMLEX-USA Level 1 is rated Elite difficulty on Wrexa Edge. Elite-tier: among the toughest exams in its category. Most successful candidates prepare for 6-12+ months. NBOME-administered osteopathic licensing exam. Pass/Fail since May 2022. From May 7, 2026: 320 Q across 8 blocks of 40 Q. Two ~4-hour sessions with scheduled break. Foundation sciences + clinical correlation. · Official language: English.

How long is the COMLEX-USA Level 1 exam?

COMLEX-USA Level 1 runs for 480 minutes total across 2 sections. On Wrexa Edge the timer is enforced exactly as on the real exam — including mandatory inter-section breaks.

What topics are covered in COMLEX-USA Level 1?

COMLEX-USA Level 1 is split into: Morning Session — Blocks 1-4 (160 Q), Afternoon Session — Blocks 5-8 (160 Q). Each section is timed and weighted separately. NBOME-administered osteopathic licensing exam. Pass/Fail since May 2022. From May 7, 2026: 320 Q across 8 blocks of 40 Q. Two ~4-hour sessions with scheduled break. Foundation sciences + clinical correlation. · Official language: English.

What tools or aids are allowed during COMLEX-USA Level 1?

Built-in lab values reference table (USMLE-style).

Is the COMLEX-USA Level 1 test adaptive?

No — COMLEX-USA Level 1 is a fixed-form (linear) test. Every candidate sees the same number of questions per section.

How many COMLEX-USA Level 1 mock tests does Wrexa Edge offer?

Wrexa Edge generates 50 distinct COMLEX-USA Level 1 variants — each with different question content, not just shuffled options — the first 3 free for everyone and 47 more with Pro. That's 16000 unique practice questions in the real test-day interface.

Is there a free COMLEX-USA Level 1 test series 2026?

Yes. The Wrexa Edge COMLEX-USA Level 1 test series for 2026 gives you 3 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.

Are COMLEX-USA Level 1 previous year question–style papers included?

Every COMLEX-USA Level 1 mock is modelled on the official exam pattern and the style of previous years' papers — the same 320-question structure, sections and marking — so your practice mirrors the real paper you'll sit.

Which is the best free COMLEX-USA Level 1 mock test online?

Wrexa Edge's COMLEX-USA Level 1 mock test replicates the real exam interface, timing and marking scheme, with instant score, section-wise analysis and 50 fresh variants — a strong free choice for 2026 preparation.

Can I take the COMLEX-USA Level 1 mock test on mobile?

Yes. COMLEX-USA Level 1 mock tests run in any browser on mobile, tablet or desktop — no app or download needed. Start on your phone and your progress and analytics sync when you sign in.

What is the COMLEX-USA Level 1 syllabus?

The COMLEX-USA Level 1 syllabus maps to its 2 sections: Morning Session — Blocks 1-4 (160 Q), Afternoon Session — Blocks 5-8 (160 Q). Wrexa Edge's mock tests cover the complete syllabus topic by topic — see the topics-covered breakdown above — so you practise every area at real exam difficulty.

What is the eligibility for COMLEX-USA Level 1?

For students enrolled at a college of osteopathic medicine (DO programme), typically taken after the second year of study once the college certifies eligibility. Wrexa Edge focuses on realistic COMLEX-USA Level 1 practice: 3 free full-length mocks in the exact exam pattern, ready whenever you are.

When is the COMLEX-USA Level 1 exam and how should I prepare?

Official COMLEX-USA Level 1 exam dates are announced by the conducting body for each cycle — check the latest notification for the current schedule. To be ready, follow a phased study plan and take full-length timed mocks; Wrexa Edge gives you 3 free COMLEX-USA Level 1 mocks with instant scoring so you can track your readiness week by week.

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Ready to ace COMLEX-USA Level 1?

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