USMLE Step 2 CK Practice Questions

How to pass the USMLE Step 2 exam on the first try

1. Read the task word before the options on USMLE Step 2 CK. Most likely diagnosis, next best step, most appropriate initial test, and definitive management are four questions about one vignette, and distractors come from the other three.
2. Sixteen 30-minute blocks of up to 20 items across a 9-hour day is the USMLE Step 2 CK format for exams on or after May 7, 2026. Thirty minutes leaves no slack, so practise full-length and plan which block gaps you will use for breaks.
3. 218 is the minimum passing score for USMLE Step 2 CK taken on or after July 1, 2025, and it is a floor. Programs see this number before the Match, so set your target from the score data for the specialties you are considering.
4. During your dedicated period, give a week each to surgery, obstetrics and gynecology, pediatrics, and psychiatry. Internal medicine is the largest share of Step 2 CK, but the rotations you finished earliest have decayed most.
5. Every wrong option on Step 2 CK is the right answer to a neighbouring question, so review each miss for the question it actually answered. Fixing that decision habit moves the score faster than another pass through management tables.

About the USMLE Step 2 exam

USMLE Step 2 Clinical Knowledge (CK) is the second of the three United States Medical Licensing Examinations, co-sponsored by the FSMB and the NBME. Where Step 1 asks why a disease happens, Step 2 CK asks what you would do about it: the most likely diagnosis, the next best step in management, the most appropriate screening test, the expected prognosis. It is normally taken after the core clinical clerkships, near the end of the third year or early in the fourth year of medical school.

Since Step 1 became pass/fail in 2022, Step 2 CK has been the only numerically scored USMLE that residency programs see before the Match, which makes it the most consequential single exam in most U.S. medical careers. Our companion analysis of average Step 2 CK scores by specialty shows how far competitive programs sit above the passing standard. The practice bank on this page is organized by the same organ systems as the USMLE content outline, and every item is written as a management or diagnosis decision instead of a recall check.

The organ systems and physician tasks USMLE Step 2 CK covers

Source: USMLE Step 2 CK Content Description and General Information

The USMLE outline classifies each item by organ system and by physician task (medical knowledge, diagnosis, health maintenance and screening, pharmacotherapy and interventions, prognosis, and systems-based practice), and publishes approximate percentage ranges for both axes. Because the axes overlap, the ranges are not reproduced here. The current outline is available from usmle.org.

How the USMLE Step 2 exam is scored

Step 2 CK is reported as a three-digit score, and it is the only numerically scored USMLE Step available before residency applications. For examinations taken on or after July 1, 2025, the minimum passing score is 218. Before that date it was 214. USMLE reviews the passing standard periodically, so check the current value on usmle.org when you register. The score report also shows a performance profile by content area.

Every item is a single-best-answer multiple-choice question, usually built on a clinical vignette. Some items present a scientific abstract or a pharmaceutical advertisement and ask you to interpret it. Others include images, and a few include audio or video. There is no penalty for wrong answers, and some items on each form are unscored pretest questions. Once you exit a block you cannot return to it.

Registration and exam rules

Administered by

FSMB and NBME, at Prometric test centers worldwide. Under the 2026 USMLE Service Transition all registration runs through the two co-sponsors. LCME- and COCA-accredited U.S. students and graduates apply through NBME (MyUSMLE portal), and students and graduates of medical schools outside the United States apply through FSMB's USMLE portal. ECFMG is no longer the registration route, although ECFMG Certification eligibility is still required for international candidates and Step 2 CK remains one of the exams ECFMG requires for Certification.

Eligibility

You must be officially enrolled in, or a graduate of, an LCME- or COCA-accredited medical school, or a medical school listed in the World Directory of Medical Schools as meeting ECFMG eligibility requirements. You select a three-month eligibility period at registration. Step 1 does not have to be passed first. Steps 1 and 2 CK may be taken in either order.

Appointment

One 9-hour testing day. For exams on or after May 7, 2026: sixteen 30-minute blocks of up to 20 items each (up to 318 items in total), a minimum of 55 minutes of break time, and an optional 5-minute tutorial. Time saved by skipping the tutorial or finishing a block early is added to your break allowance. Closed blocks cannot be reopened.

Content

Items follow the USMLE Step 2 CK content outline, which crosses organ systems with physician tasks and competencies. The on-screen reference lists normal laboratory values.

Attempt limits

Four attempts at each Step is the cap. You may not take Step 2 CK more than three times in a 12-month period, and a fourth attempt must be at least 12 months after the first and 6 months after the most recent. You cannot retake a Step you have passed.

Results

Score reports are released through your registration entity, typically within about four weeks of the test date. Scores are reported to residency programs through ERAS with your authorization.

The 6-week USMLE Step 2 CK study plan

Clerkships are the core of Step 2 CK preparation, and the shelf exams you took during them are the best predictor of where you stand. The plan below assumes a six-week dedicated period at 40 to 50 hours a week after the core rotations are finished.

1. Week 1Baseline. Take a full-length self-assessment under timed conditions and compare the result against the score range for the specialties you are considering. Set a daily routine of four to six timed 20-item blocks (the block length on the current exam) with full review, and start a running list of management algorithms you keep getting wrong.
2. Weeks 2–3Internal medicine systems, which dominate the exam: Cardiovascular, Respiratory and Renal, Gastrointestinal, Endocrine, and Blood and Immune. For each condition know the first test, the best test, the first-line treatment, and the complication that changes management.
3. Week 4Surgery, Obstetrics and Gynecology, and Pediatrics. Surgical items are largely about when to operate and what to do before and after. Obstetric items reward knowing the normal course precisely enough to spot the deviation. Pediatric items lean on milestones, vaccines, growth charts, and age-specific differentials.
4. Week 5Psychiatry and Neurology, Biostatistics and Population Health, and Communication and Ethics. Practise abstract and drug-advertisement items until reading a results table takes under two minutes, and learn the ethics principles as rules that decide the answer instead of background reading.
5. Week 6Two full-length simulations (sixteen 30-minute blocks of 20 items with the real 55-minute break allowance) three or four days apart, each followed by review by system and by physician task. Stop new material two days out and rest.

Where USMLE Step 2 candidates lose points

• Answering the question you expected instead of the one asked. "Most likely diagnosis", "next best step", "most appropriate initial test", and "definitive management" are different questions about the same vignette, and the distractors are built from the other three.
• Under-preparing the non-medicine rotations. Internal medicine is the largest share of the exam, but candidates who rotated through surgery, OB/GYN, pediatrics, and psychiatry early often let them decay. One week on each is a much better return than a fifth pass through cardiology.
• Skipping abstract and pharmaceutical-advertisement items in practice. They are long and they are on every form, but the underlying biostatistics is small and learnable. Losing five minutes and two questions to an unfamiliar format is a pacing failure you can prevent.
• Treating 218 as the target. The passing score guarantees a transcript entry and nothing more. Competitive specialties match well above it. Set your target from the specialty score data instead of the passing standard.
• Ignoring pacing across sixteen short blocks. Thirty-minute blocks leave no slack for a slow start, and nine hours is long enough that accuracy typically falls in the last few. Practise full-length days. Decide in advance which of the fifteen block gaps you will actually use for breaks, and eat during them. Banking time by skipping breaks is a poor trade.

Learn the USMLE Step 2 the way its item writers think

Most Step 2 CK distractors are true statements. They are right answers to a neighbouring question. The stem asks for the next best step and one option is the definitive treatment. It asks for the most likely diagnosis and one option is the second-most-likely with a louder buzzword. It asks what to do first and one option is the CT scan you would order after the patient is stable. It asks for the most appropriate screening test and one option is the confirmatory test you would order once a screen came back positive. Our Step 2 CK items are written with those same decoys, and a miss shows you why the option you chose was the answer to a different question and what in the stem should have ruled it out. On Pro, every wrong option carries its trap label (stem misread, anchoring, scope confusion, or "true but not best") alongside the full distractor analysis.

Across a few hundred items the labels reveal the habit behind your score. Perhaps you diagnose accurately but keep choosing the test before stabilising the patient, or you lose points in Reproductive and Endocrine to time-course misreads instead of knowledge gaps. The variant engine responds with new vignettes on the same management decision in a different presentation until the pattern breaks, and hints strip out the most tempting decoy and point you back to the task word in the stem instead of revealing the answer. Programs see one number from this exam. The way to move it is to fix the decision habit, which no extra pass through management tables will do.

USMLE Step 2 exam FAQ

Further reading

• Average Step 2 CK score by specialty (NRMP match data)
• USMLE Step 1 practice questions
• Next step: USMLE Step 3 practice questions
• USMLE Step 1 study plan: a week-by-week dedicated schedule
• Plans and pricing for full question-bank access