NBME OB/GYN exam at a glance
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NBME OB/GYN 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 Obstetrics & Gynecology 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, reported as a scaled score (national mean roughly 70, SD about 8) plus a national percentile. There is no fixed national pass mark — schools set their own standard. Separate from USMLE Step 2 CK. |
| Language | English. |
Who is eligible for NBME OB/GYN?
Enrolled medical students (mainly third-year clerkship students); administered through the school.
Last verified July 2026 against NBME — Clinical Science Subject Exams. Always confirm current details on the official website before you register.
NBME OB/GYN section breakdown
The NBME OB/GYN 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 OB/GYN (50 Q)
Marking scheme
+1 per correct. Try your score.
Strategy: NBME OB/GYN has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.
Scale: NBME OB/GYN (pass 700/1000).
How NBME OB/GYN is conducted
- Mode
- Test format
- Backtracking
- Mark for review
NBME OB/GYN 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 OB/GYN (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 OB/GYN topics covered
Across the 50 Wrexa Edge variants of NBME OB/GYN, the following topics appear most often (sample distribution from one variant):
NBME OB/GYN (50 Q)
- OBGYN — Obstetric Complications · 12
- OBGYN — Gynecology · 11
- OBGYN — Labor & Delivery · 8
- OBGYN — Gyn Oncology & Screening · 8
- OBGYN — Prenatal Care · 6
- OBGYN — Contraception · 4
- OBGYN — Menstrual Disorders · 1
NBME OB/GYN 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. Obstetrics & gynecology — prenatal care, labor & delivery, gynecologic disorders and oncology. · Official language: English.
Verified content — Wrexa Edge's NBME OB/GYN bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).
How Wrexa Edge prepares you for NBME OB/GYN
- Real test-day interface
- 50 distinct variants
- Detailed analytics
- Spaced repetition (Notebook)
- Optional proctoring
- Free to start
Expert take: what NBME OB/GYN really tests
The NBME Obstetrics & Gynecology shelf is a roughly 110-question, 2-hour-45-minute exam covering prenatal care, labor and delivery, and the breadth of gynecology. Results are a scaled score plus percentile, with each school setting its own passing standard.
Preparation tips
- Work the free APGO UWise questions plus UWorld OB-GYN.
- Learn the standard obstetric management algorithms (labor stages, fetal tracings).
- Nail contraception and cervical-cancer screening guidelines — reliably tested.
Common mistakes to avoid
- Confusing obstetric versus gynecologic management contexts.
- Skipping preventive and screening-guideline questions that appear on every form.
NBME OB/GYN 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.
- Work the free APGO UWise questions and BRS Obstetrics & Gynecology
- Learn obstetric management algorithms (labor stages, fetal tracings)
- Cover contraception and cervical-cancer screening guidelines
- Do UWorld OB-GYN questions
- Distinguish obstetric vs gynecologic management contexts
- Cover benign and malignant gynecologic conditions
- Take an NBME self-assessment timed
- Re-drill screening and preventive guidelines
- Rest before test day
Where NBME OB/GYN can take you
A strong NBME OB/GYN result opens up these careers and higher-study paths:
- Clerkship grade & honors
- OB-GYN residency
- Women’s-health foundation
Best books & official prep for NBME OB/GYN
- BRS Obstetrics & Gynecology — Sakala / Pfeifer
- Case Files: Obstetrics & Gynecology — Toy et al.
- UWise (APGO) question bank — APGO
- UWorld Step 2 CK Qbank — UWorld
Official practice: NBME Clinical Science Mastery Series self-assessments are the most accurate score predictor.
Previous-year papers: NBME does not release past papers; official practice comes from the NBME self-assessments.
Sample NBME OB/GYN practice questions
5 questions taken from the NBME OB/GYN mock tests on Wrexa Edge. Try each one, then reveal the answer.
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Q1. A 17-year-old girl has primary amenorrhea. She has well-developed breasts but scant pubic and axillary hair. The vagina ends blindly and no uterus is seen. Bilateral inguinal masses are palpable. What is the most likely karyotype?
- 46,XX
- 45,X
- 47,XXY
- 46,XY
Show answer
Answer: D — 46,XY
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Q2. A 25-year-old woman at 30 weeks' gestation received a Tdap vaccine 2 years ago during her last pregnancy. Which recommendation is most appropriate?
- Give Tdap again during this pregnancy
- No vaccine needed since she received it
- Give Tdap only after delivery
- Give tetanus immune globulin instead
Show answer
Answer: A — Give Tdap again during this pregnancy
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Q3. A 28-year-old woman at 30 weeks has a sudden gush of clear fluid. Sterile speculum shows pooling, nitrazine is positive, and ferning is seen. She is afebrile without contractions and the fetal tracing is reassuring. What is the most appropriate management?
- Immediate induction of labor
- Admit, give corticosteroids and latency antibiotics
- Discharge with pelvic rest and weekly outpatient visits
- Emergency cesarean delivery
Show answer
Answer: B — Admit, give corticosteroids and latency antibiotics
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Q4. A 30-year-old woman wants nonhormonal long-acting contraception. She has regular cycles with normal flow. Which adverse effect should she be counseled about with a copper IUD?
- Amenorrhea in most users
- Significant weight gain
- Heavier and more painful menses
- Loss of bone density
Show answer
Answer: C — Heavier and more painful menses
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Q5. A 31-year-old woman at 38 weeks has spontaneous rupture of membranes. The fetal heart rate drops to 70/min. Vaginal examination reveals a pulsating cord in the vagina ahead of the presenting part. What is the most appropriate management?
- Attempt to replace the cord into the uterus
- Start oxytocin to hasten vaginal delivery
- Turn the patient supine and observe the fetal tracing for 30 minutes
- Manually elevate the presenting part and proceed to cesarean
Show answer
Answer: D — Manually elevate the presenting part and proceed to cesarean
Frequently asked questions
- What is the NBME OB/GYN exam pattern?
- NBME Obstetrics & Gynecology Subject Exam (Shelf) contains 50 questions across 1 section: NBME OB/GYN (50 Q). Total duration is 165 minutes (about 198 seconds per question).
- Does NBME OB/GYN have negative marking?
- No — NBME OB/GYN has no negative marking. Each correct answer is worth 1 mark, so attempt every question.
- How is NBME OB/GYN scored?
- Scaled score range: 100 to 1000. NBME OB/GYN (pass 700/1000).
- How can I practise NBME OB/GYN online for free?
- Wrexa Edge gives you a free full-length NBME OB/GYN mock test — with instant scoring, detailed explanations and analytics — plus 49 more with a one-time $1.99 unlock that never expires. Start practising in under a minute, no card required.
- What is the difficulty level of NBME OB/GYN?
- NBME OB/GYN 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. Obstetrics & gynecology — prenatal care, labor & delivery, gynecologic disorders and oncology. · Official language: English.
- How long is the NBME OB/GYN exam?
- NBME OB/GYN 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 OB/GYN?
- NBME OB/GYN is split into: NBME OB/GYN (50 Q). Each section is timed and weighted separately. NBME Subject (Shelf) Exam · ~110 MCQ. Obstetrics & gynecology — prenatal care, labor & delivery, gynecologic disorders and oncology. · Official language: English.
- What tools or aids are allowed during NBME OB/GYN?
- 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 OB/GYN test adaptive?
- No — NBME OB/GYN is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
- How many NBME OB/GYN mock tests does Wrexa Edge offer?
- Wrexa Edge generates 50 distinct NBME OB/GYN variants — each with different question content, not just shuffled options — the first one free for everyone and 49 more with a one-time $1.99 unlock. That's 2500 unique practice questions in the real test-day interface.
- Is there a free NBME OB/GYN test series 2026?
- Yes. The Wrexa Edge NBME OB/GYN test series for 2026 gives you a free full-length mock test (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.
- Are NBME OB/GYN previous year question–style papers included?
- Every NBME OB/GYN 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 OB/GYN mock test online?
- Wrexa Edge's NBME OB/GYN 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 OB/GYN mock test on mobile?
- Yes. NBME OB/GYN 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 OB/GYN syllabus?
- The NBME OB/GYN syllabus maps to its 1 section: NBME OB/GYN (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 OB/GYN?
- Enrolled medical students (mainly third-year clerkship students); administered through the school. Wrexa Edge focuses on realistic NBME OB/GYN practice: a free full-length mock in the exact exam pattern, ready whenever you are.
- When is the NBME OB/GYN exam and how should I prepare?
- Official NBME OB/GYN 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 a free NBME OB/GYN mock with instant scoring so you can track your readiness week by week.
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