- How many questions are on USMLE Step 3?
- Step 3 has up to 412 multiple-choice questions spread across two test days, with a maximum of 232 on Day 1 and 180 on Day 2. Day 2 also includes 13 to 14 computer-based case simulations (CCS), each running up to 10 or 20 minutes. Exact counts vary slightly by form. If your notes are handwritten or scanned, run them through an OCR tool like DocuOCR first so the generator can read every page.
- What is a passing score for USMLE Step 3?
- The minimum passing score is 200, effective for exams taken on or after January 1, 2024, raised from the previous 198. Step 3 is reported as a numeric 3-digit score. It is the final USMLE step and, along with Step 2 CK, one of the two numerically scored steps, so many candidates aim comfortably above the 200 line rather than at it.
- How long is the USMLE Step 3 exam?
- Step 3 is a two-day exam. Day 1, Foundations of Independent Practice, runs about 7 hours. Day 2, Advanced Clinical Medicine, runs about 9 hours and includes the case simulations. The two days do not have to be taken back to back, but they must be completed within a 14-day period once you begin. Build stamina during prep, not just accuracy.
- Did USMLE Step 3 change in 2026?
- Yes. For test dates on or after March 10, 2026, Step 3 moved to 30-minute blocks. Day 1 now runs twelve 30-minute blocks instead of six 60-minute blocks, and Day 2 runs nine 30-minute MCQ blocks instead of six 45-minute blocks. The total item counts, the case simulations and the overall length of each day did not change, only the block structure did.
- Can you take Step 3 before residency?
- Yes. Residency is not required to sit Step 3. You need to have passed Step 1 and Step 2 CK and to hold an MD or DO degree, or valid ECFMG certification if you are an international medical graduate. Many candidates take Step 3 during intern year, and some states set their own training requirements, so check the board you apply through.
- Is Step 3 harder than Step 2 CK?
- It is different rather than simply harder. Step 3 tests whether you can practice medicine independently, so it leans on management decisions over time, biostatistics, ethics and patient safety, and it adds the CCS case simulations that Step 2 CK does not have. Many residents find the content more familiar because they are working clinically, but the CCS format and the two-day length are their own challenge.
- Is this an official USMLE practice test?
- No. PDFQuiz is an independent study tool and is not affiliated with or endorsed by the NBME, the FSMB or the USMLE program. It generates practice questions from the material you upload so you can rehearse clinical reasoning, and it does not reproduce real exam questions or the CCS software. Use it alongside official USMLE materials from usmle.org, not as a replacement.