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USMLE Step 2 CK (USMLE Step 2 Clinical Knowledge) — Free Online Mock Test

16 blocks × up to 20 Q × 30 min (post-May-7-2026 format; pre-May-2026 was 8 × 40 × 60). Total ≤318 Q. · Official language: English.

Elite United States Medical Licensing 320 questions 480 min 50 distinct variants
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USMLE Step 2 CK exam at a glance

320
Questions
480
Minutes total
16
Sections
50
Variants

USMLE Step 2 CK section breakdown

The USMLE Step 2 CK 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.

USMLE Step 2 CK scoring & marking scheme

+1
Per correct answer
0
Per wrong answer
0
Per blank / skipped
0–100
Scaled score range

Strategy: USMLE Step 2 CK has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.

Scale: USMLE Step 2 CK (% accuracy).

How USMLE Step 2 CK is conducted

Tools available during the USMLE Step 2 CK exam

Wrexa Edge renders these tools inside the mock test exactly as they appear on the real USMLE Step 2 CK exam — same shortcuts, same behaviour.

USMLE Step 2 CK 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:

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

USMLE Step 2 CK topics covered

Across the 50 Wrexa Edge variants of USMLE Step 2 CK, the following topics appear most often (sample distribution from one variant):

Block 1 (20 Q)

Block 2 (20 Q)

Block 3 (20 Q)

Block 4 (20 Q)

Block 5 (20 Q)

Block 6 (20 Q)

Block 7 (20 Q)

Block 8 (20 Q)

Block 9 (20 Q)

Block 10 (20 Q)

Block 11 (20 Q)

Block 12 (20 Q)

Block 13 (20 Q)

Block 14 (20 Q)

Block 15 (20 Q)

Block 16 (20 Q)

Sample USMLE Step 2 CK questions

A preview of real practice questions from the Wrexa Edge USMLE Step 2 CK bank — the same style, phrasing and difficulty you'll face on test day. Full solutions unlock free inside the mock.

Block 1 (20 Q) · Step 2 — SAH Workup
Q1. A "thunderclap" headache with neck stiffness in an alert patient requires:
Why: Correct answer: D — Non-contrast head CT first, then LP if CT negative — to rule out subarachnoid hemorrhage. Topic: Step 2 — SAH Workup.
Block 2 (20 Q) · ID — TB
Q2. Standard regimen for active drug-sensitive pulmonary tuberculosis:
Why: Correct answer: D — 2 months RIPE + 4 months RI (rifampicin + isoniazid). Topic: ID — TB.
Block 3 (20 Q) · NEET-Clin — Medicine Wilson
Q3. "Wilson disease" features:
Why: Correct answer: D — Copper accumulation, Kayser-Fleischer rings, liver dysfunction, neurologic Sx; low ceruloplasmin. Topic: NEET-Clin — Medicine Wilson.
Block 4 (20 Q) · Pharm — Anticoagulation
Q4. A patient on warfarin has elevated INR (5.5) without bleeding. Management:
Why: Correct answer: D — Hold warfarin and recheck INR; small dose of vitamin K only if very elevated. Topic: Pharm — Anticoagulation.
Block 5 (20 Q) · NEET-Clin — Radiol PTX
Q5. "Pneumothorax" CXR findings:
Why: Correct answer: D — Absence of lung markings, visible visceral pleural line, sometimes mediastinal shift (tension). Topic: NEET-Clin — Radiol PTX.
Block 6 (20 Q) · Biostats — Test characteristics
Q6. Sensitivity is defined as:
Why: Correct answer: D — True positives / (True positives + False negatives). Topic: Biostats — Test characteristics.

These are a handful of the 16000 unique USMLE Step 2 CK questions across all 50 Wrexa Edge variants — start a free mock to attempt the full set with instant scoring.

USMLE Step 2 CK difficulty calibration

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

16 blocks × up to 20 Q × 30 min (post-May-7-2026 format; pre-May-2026 was 8 × 40 × 60). Total ≤318 Q. · Official language: English.

Verified content — Wrexa Edge's USMLE Step 2 CK bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).

How Wrexa Edge prepares you for USMLE Step 2 CK

USMLE Step 2 CK 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.

1 Phase 1 — Learn the syllabus Weeks 1–4
  • Work through every section — Block 1 (20 Q), Block 2 (20 Q), Block 3 (20 Q), Block 4 (20 Q), Block 5 (20 Q), Block 6 (20 Q), Block 7 (20 Q), Block 8 (20 Q), Block 9 (20 Q), Block 10 (20 Q), Block 11 (20 Q), Block 12 (20 Q), Block 13 (20 Q), Block 14 (20 Q), Block 15 (20 Q), Block 16 (20 Q) — from your core study material
  • Make short notes and a formula/fact sheet you can revise quickly
  • Attempt topic questions right after finishing each area
2 Phase 2 — Practice & sectionals Weeks 5–8
  • Solve previous-year and practice questions section by section
  • Time yourself on Block 1 (20 Q) and your weakest areas
  • Keep an error log and revisit every mistake weekly
3 Phase 3 — Full-length mocks Weeks 9–12
  • Take full-length USMLE Step 2 CK mocks in the real test interface
  • Analyse accuracy, time per question and silly mistakes after each mock
  • Revise from notes and re-attempt only weak-topic questions

Where USMLE Step 2 CK can take you

A strong USMLE Step 2 CK result opens up these careers and higher-study paths:

Frequently asked questions

What is the USMLE Step 2 CK exam pattern?
USMLE Step 2 Clinical Knowledge contains 320 questions across 16 sections: Block 1 (20 Q), Block 2 (20 Q), Block 3 (20 Q), Block 4 (20 Q), Block 5 (20 Q), Block 6 (20 Q), Block 7 (20 Q), Block 8 (20 Q), Block 9 (20 Q), Block 10 (20 Q), Block 11 (20 Q), Block 12 (20 Q), Block 13 (20 Q), Block 14 (20 Q), Block 15 (20 Q), Block 16 (20 Q). Total duration is 480 minutes (about 90 seconds per question).
Does USMLE Step 2 CK have negative marking?
No — USMLE Step 2 CK has no negative marking. Each correct answer is worth 1 mark, so attempt every question.
How is USMLE Step 2 CK scored?
Scaled score range: 0 to 100. USMLE Step 2 CK (% accuracy).
How can I practise USMLE Step 2 CK online for free?
Wrexa Edge gives you 10 free full-length USMLE Step 2 CK mock tests — with instant scoring, detailed explanations and analytics — plus 40 more with Pro. Start practising in under a minute, no card required.
What is the difficulty level of USMLE Step 2 CK?
USMLE Step 2 CK is rated Elite difficulty on Wrexa Edge. Elite-tier: among the toughest exams in its category. Most successful candidates prepare for 6-12+ months. 16 blocks × up to 20 Q × 30 min (post-May-7-2026 format; pre-May-2026 was 8 × 40 × 60). Total ≤318 Q. · Official language: English.
How long is the USMLE Step 2 CK exam?
USMLE Step 2 CK runs for 480 minutes total across 16 sections. On Wrexa Edge the timer is enforced exactly as on the real exam — including mandatory inter-section breaks.
What topics are covered in USMLE Step 2 CK?
USMLE Step 2 CK is split into: Block 1 (20 Q), Block 2 (20 Q), Block 3 (20 Q), Block 4 (20 Q), Block 5 (20 Q), Block 6 (20 Q), Block 7 (20 Q), Block 8 (20 Q), Block 9 (20 Q), Block 10 (20 Q), Block 11 (20 Q), Block 12 (20 Q), Block 13 (20 Q), Block 14 (20 Q), Block 15 (20 Q), Block 16 (20 Q). Each section is timed and weighted separately. 16 blocks × up to 20 Q × 30 min (post-May-7-2026 format; pre-May-2026 was 8 × 40 × 60). Total ≤318 Q. · Official language: English.
What tools or aids are allowed during USMLE Step 2 CK?
Built-in lab values reference table (USMLE-style). Note: real exam is proctored — Wrexa Edge mirrors this with a webcam-based proctoring flow you can enable.
Is the USMLE Step 2 CK test adaptive?
No — USMLE Step 2 CK is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
How many USMLE Step 2 CK mock tests does Wrexa Edge offer?
Wrexa Edge generates 50 distinct USMLE Step 2 CK variants — each with different question content, not just shuffled options — the first 10 free for everyone and 40 more with Pro. That's 16000 unique practice questions in the real test-day interface.
Is there a free USMLE Step 2 CK test series 2026?
Yes. The Wrexa Edge USMLE Step 2 CK test series for 2026 gives you 10 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.
Are USMLE Step 2 CK previous year question–style papers included?
Every USMLE Step 2 CK 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 USMLE Step 2 CK mock test online?
Wrexa Edge's USMLE Step 2 CK 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 USMLE Step 2 CK mock test on mobile?
Yes. USMLE Step 2 CK 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 USMLE Step 2 CK syllabus?
The USMLE Step 2 CK syllabus maps to its 16 sections: Block 1 (20 Q), Block 2 (20 Q), Block 3 (20 Q), Block 4 (20 Q), Block 5 (20 Q), Block 6 (20 Q), Block 7 (20 Q), Block 8 (20 Q), Block 9 (20 Q), Block 10 (20 Q), Block 11 (20 Q), Block 12 (20 Q), Block 13 (20 Q), Block 14 (20 Q), Block 15 (20 Q), Block 16 (20 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 USMLE Step 2 CK?
Eligibility for USMLE Step 2 CK — age, qualification and number of attempts — is set by the official conducting body and can change each cycle, so always confirm the current official notification before applying. Wrexa Edge focuses on realistic USMLE Step 2 CK practice: 10 free full-length mocks in the exact exam pattern, ready whenever you are.
When is the USMLE Step 2 CK exam and how should I prepare?
Official USMLE Step 2 CK 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 10 free USMLE Step 2 CK mocks with instant scoring so you can track your readiness week by week.

Related exams & practice tests

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UCAT mock testUSMLE Step 1 mock testPLAB mock testNCLEX mock testCPC mock testCOC mock testCIC mock testCRC mock test

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