NBME Internal Medicine Subject Exam (Shelf) — Free Online Mock Test
NBME Subject (Shelf) Exam · ~110 MCQ. Internal medicine — cardiology, pulmonology, GI, nephrology, endocrine, ID, heme/onc and rheumatology. · Official language: English.
NBME Internal Medicine exam at a glance
NBME Internal Medicine key facts & eligibility
| Conducting body | National Board of Medical Examiners (NBME). |
|---|---|
| Official website | nbme.org — Clinical Science Subject Exams ↗ |
| Mode | Computer-based, administered by the medical school (secure browser) or at a Prometric centre; scheduled at the end of the Internal Medicine clerkship. |
| Frequency | Available year-round; each school schedules it at the end of the clerkship. |
| Scoring & marking | Typically around 110 single-best-answer clinical-vignette questions in about 2 hours 45 minutes. NBME reports a scaled score (national mean roughly 70, standard deviation about 8) and a national percentile rank; there is no fixed national pass mark — each medical school sets its own passing standard and how the shelf counts toward the clerkship grade. It is written by NBME like the USMLE but is a separate exam with its own item pool (not USMLE Step 2 CK). |
| Language | English. |
Who is eligible for NBME Internal Medicine?
Enrolled medical students (mainly third-year clerkship students); administered through the school rather than by individual registration.
Last verified July 2026 against NBME — Clinical Science Subject Exams. Always confirm current details on the official website before you register.
NBME Internal Medicine section breakdown
The NBME Internal Medicine mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. No inter-section breaks — the timer runs continuously.
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NBME Internal Medicine (50 Q)
NBME Internal Medicine scoring & marking scheme
Strategy: NBME Internal Medicine has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.
Scale: NBME Internal Medicine (pass 700/1000).
How NBME Internal Medicine is conducted
- Mode
- Test format
- Backtracking
- Mark for review
NBME Internal Medicine time strategy
With 50 questions in 165 minutes, you have about 198 seconds per question on average. Successful candidates aim for the following pacing on each section:
- NBME Internal Medicine (50 Q)
Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.
NBME Internal Medicine topics covered
Across the 50 Wrexa Edge variants of NBME Internal Medicine, the following topics appear most often (sample distribution from one variant):
NBME Internal Medicine (50 Q)
- Clinical Medicine · 25
- SAH Workup · 1
- PE Workup · 1
- Pulmonary TB · 1
- Variceal Bleed · 1
- H. pylori · 1
- Colorectal Cancer Screening · 1
- Pancreatitis · 1
NBME Internal Medicine difficulty calibration
Advanced tier. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep.
NBME Subject (Shelf) Exam · ~110 MCQ. Internal medicine — cardiology, pulmonology, GI, nephrology, endocrine, ID, heme/onc and rheumatology. · Official language: English.
Verified content — Wrexa Edge's NBME Internal Medicine bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).
How Wrexa Edge prepares you for NBME Internal Medicine
- Real test-day interface
- 50 distinct variants
- Detailed analytics
- Spaced repetition (Notebook)
- Optional proctoring
- Free to start
Expert take: what NBME Internal Medicine really tests
The NBME Medicine (Internal Medicine) shelf is a roughly 110-question, 2-hour-45-minute exam of adult-medicine clinical vignettes taken at the end of the IM clerkship. It is the broadest core shelf and closely mirrors Step 2 CK content; results are a scaled score plus percentile with no fixed national pass mark — each school sets the standard.
Preparation tips
- Build a broad IM foundation early with Step-Up to Medicine and OnlineMedEd.
- Do a large volume of UWorld Step 2 questions since IM overlaps every organ system.
- Take an NBME self-assessment timed near the end to calibrate pacing.
⚠️ Common mistakes to avoid
- Underestimating the breadth and cramming a single organ system.
- Memorising facts instead of practising “next best step in management” reasoning.
NBME Internal Medicine 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.
- Build a broad IM base with Step-Up to Medicine and OnlineMedEd
- Cover every organ system — IM is the broadest shelf
- Take brief notes on “next best step” management
- Do a large volume of UWorld Step 2 CK questions
- Review each explanation, right or wrong
- Target weak organ systems
- Take an NBME self-assessment timed to calibrate pacing
- Review high-yield ambulatory and health-maintenance topics
- Rest before test day
Where NBME Internal Medicine can take you
A strong NBME Internal Medicine result opens up these careers and higher-study paths:
- Clerkship grade & honors
- Residency application
- Foundation for all clerkships
Best books & official prep for NBME Internal Medicine
- Step-Up to Medicine — Agabegi & Agabegi
- Case Files: Internal Medicine — Toy et al.
- Master the Boards USMLE Step 2 CK — Conrad Fischer
- UWorld Step 2 CK Qbank — UWorld
Official practice: NBME sells Clinical Science Mastery Series self-assessments that mirror the real exam interface — the most accurate score predictor.
Previous-year papers: NBME does not release past papers; official practice comes from the NBME self-assessments.
Frequently asked questions
- What is the NBME Internal Medicine exam pattern?
- NBME Internal Medicine Subject Exam (Shelf) contains 50 questions across 1 section: NBME Internal Medicine (50 Q). Total duration is 165 minutes (about 198 seconds per question).
- Does NBME Internal Medicine have negative marking?
- No — NBME Internal Medicine has no negative marking. Each correct answer is worth 1 mark, so attempt every question.
- How is NBME Internal Medicine scored?
- Scaled score range: 100 to 1000. NBME Internal Medicine (pass 700/1000).
- How can I practise NBME Internal Medicine online for free?
- Wrexa Edge gives you 10 free full-length NBME Internal Medicine 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 NBME Internal Medicine?
- NBME Internal Medicine is rated Advanced difficulty on Wrexa Edge. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep. NBME Subject (Shelf) Exam · ~110 MCQ. Internal medicine — cardiology, pulmonology, GI, nephrology, endocrine, ID, heme/onc and rheumatology. · Official language: English.
- How long is the NBME Internal Medicine exam?
- NBME Internal Medicine runs for 165 minutes total. On Wrexa Edge the timer is enforced exactly as on the real exam — including no inter-section breaks.
- What topics are covered in NBME Internal Medicine?
- NBME Internal Medicine is split into: NBME Internal Medicine (50 Q). Each section is timed and weighted separately. NBME Subject (Shelf) Exam · ~110 MCQ. Internal medicine — cardiology, pulmonology, GI, nephrology, endocrine, ID, heme/onc and rheumatology. · Official language: English.
- What tools or aids are allowed during NBME Internal Medicine?
- No special tools are required. Note: real exam is proctored — Wrexa Edge mirrors this with a webcam-based proctoring flow you can enable.
- Is the NBME Internal Medicine test adaptive?
- No — NBME Internal Medicine is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
- How many NBME Internal Medicine mock tests does Wrexa Edge offer?
- Wrexa Edge generates 50 distinct NBME Internal Medicine variants — each with different question content, not just shuffled options — the first 10 free for everyone and 40 more with Pro. That's 2500 unique practice questions in the real test-day interface.
- Is there a free NBME Internal Medicine test series 2026?
- Yes. The Wrexa Edge NBME Internal Medicine 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 NBME Internal Medicine previous year question–style papers included?
- Every NBME Internal Medicine mock is modelled on the official exam pattern and the style of previous years' papers — the same 50-question structure, sections and marking — so your practice mirrors the real paper you'll sit.
- Which is the best free NBME Internal Medicine mock test online?
- Wrexa Edge's NBME Internal Medicine 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 NBME Internal Medicine mock test on mobile?
- Yes. NBME Internal Medicine 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 NBME Internal Medicine syllabus?
- The NBME Internal Medicine syllabus maps to its 1 section: NBME Internal Medicine (50 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 NBME Internal Medicine?
- Eligibility for NBME Internal Medicine — 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 NBME Internal Medicine practice: 10 free full-length mocks in the exact exam pattern, ready whenever you are.
- When is the NBME Internal Medicine exam and how should I prepare?
- Official NBME Internal Medicine 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 NBME Internal Medicine mocks with instant scoring so you can track your readiness week by week.
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