USMLE Step 2 CK Practice Test

318 questions286 minutesDetailed explanationsInstant scoring

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About the Real USMLE Step 2 CK Exam

USMLE Step 2 Clinical Knowledge medical licensing exam. A strong, blueprint-matched practice run is one of the best predictors of how you will perform on the real exam.

Our USMLE Step 2 CK Practice Test

Our USMLE Step 2 CK practice test contains 318 original questions spanning Internal Medicine & Surgery, Pediatrics & OB/GYN, Psychiatry & Preventive. Each question mirrors the real exam's style and difficulty and includes a detailed explanation, so every question teaches you something.

What to Expect

Internal Medicine & Surgery: Diagnosis, management, complications.
Pediatrics & OB/GYN: Well-child, common illnesses, pregnancy, gynecology.
Psychiatry & Preventive: Psychiatry, ethics, biostatistics, preventive medicine.

Try a Sample Question

USMLE Step 2 CK — Sample · medium

A 58-year-old man presents with crushing substernal chest pain radiating to the left arm for 40 minutes. ECG shows ST elevation in leads II, III, and aVF. Which artery is most likely occluded?

A Right coronary artery

B Left anterior descending artery

C Left circumflex artery

D Left main coronary artery

Explanation. ST elevation in II, III, and aVF indicates an inferior MI, most commonly from right coronary artery occlusion. The LAD supplies the anterior wall (V1-V4) and the circumflex the lateral wall (I, aVL, V5-V6).

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