USMLE Step 3 Medical Licensure Examination Practice Test

185 questions available

Build your confidence for USMLE Step 3 Medical Licensure Examination. Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.

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Certification exam
480 Exam questions
16 hours Time Limit
Your practice
185 Practice questions
3 hours 5 minutes Practice Time
Try 5 free questions
No account needed. A free account includes 20 questions for this exam.
The bar to clear 198/digit scale; minimum passing score 198 Published passing score for this certification.
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NBME (USMLE)185 practice questions
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Exam overview and details

USMLE Step 3 final examination covering clinical decision-making, diagnosis, management, and foundations of independent medical practice. Administered by National Board of Medical Examiners as a linear (computer-based); adaptive for ccs format exam. Key domains include Diagnosis, Patient Management, Applying Foundational Science and Health Maintenance and Preventive Medicine. The exam consists of 480 questions over 960 minutes.

Sample Questions

Choose an answer and explore the explanation to see how practice works.

Diagnosis

A a 34-year-old woman has unilateral leg swelling, calf tenderness, and high Wells score 2 days after long-haul travel.. Which diagnosis is most likely?

Diagnosis

A a 28-year-old woman has palpitations, dyspnea, pleuritic chest pain, and syncope 1 week after knee surgery. Oxygen saturation is 88 percent.. Which diagnosis is most likely?

Diagnosis

A a 43-year-old woman has fatigue, pica, heavy menstrual bleeding, low MCV, low ferritin, and high total iron-binding capacity.. Which diagnosis is most likely?

Diagnosis

A a 22-year-old woman has episodic wheezing, cough worse at night, and reversible obstruction on spirometry after bronchodilator.. Which diagnosis is most likely?

Patient Care: Management

A a 76-year-old man with HFrEF takes sacubitril-valsartan, metoprolol succinate, spironolactone, and furosemide. EF is 28 and eGFR is 56.. Which medication class should be added?

Exam insights and study advice

Passing the USMLE Step 3 is the definitive gateway to independent medical licensure in the United States. It is not merely an academic hurdle; it is a legal and professional requirement to practice medicine without supervision. This licensure enables physicians to apply for residency positions (for IMGs), obtain hospital privileges, bill for services, and fully embark on their careers. The exam's focus on management and decision-making directly translates to the daily responsibilities of a practicing physician, ensuring a baseline competency for patient safety and effective care delivery.

These are the backgrounds the certifying body suggests. Check the vendor's own page for anything it formally requires.

What this exam covers

Use the published domain weights to plan your study. Practice results do not predict your certification exam score.

01Diagnosis

33-36%

02Patient Management

32-35%

03Applying Foundational Science

11-12%

04Health Maintenance and Preventive Medicine

6-11%

05Mixed Practice (Pharmaceutical and Non-Pharmaceutical)

6-11%

06Clinical Interventions

5-9%

Exam Details Step 3 | $905 USD | 16 hours

Exam Code Step 3
Vendor NBME (USMLE)
Exam Cost $905 USD
Passing Score 198/digit scale; minimum passing score 198
Time Limit 16 hours
Exam questions 480
Question TypesMultiple Choice (single best answer), Computer-based Case Simulations (CCS) — Step 3 Day 2 only
Retake Policy Must wait at least 60 days before retaking the same Step exam. Maximum 3 attempts per 12-month period. Maximum 6 total attempts per Step. Full fee required for each retake.
Exam Format Linear (computer-based); Adaptive for CCS
Exam rules Closed-book. On-screen calculator provided. No notes or electronic devices. Optional scheduled breaks available between blocks (break time deducted from total). Step 3 Day 2 includes Computer-based Case Simulations (CCS) using patient management software.
Available In
English

Frequently Asked Questions

When is the best time to take Step 3 during residency?

How important are the Computer-Based Case Simulations (CCS), and how should I prepare for them?

Is Step 3 content different from Step 2 CK?

What is the exam format and how is it structured over the two days?