100+ Free ABOG Reproductive Endocrinology and Infertility Practice Questions
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The hypothalamic-pituitary-ovarian axis relies on pulsatile GnRH secretion from the arcuate nucleus. What frequency of GnRH pulses preferentially stimulates FSH over LH release?
Key Facts: ABOG Reproductive Endocrinology and Infertility Exam
200
Multiple-Choice Questions (QE)
ABOG Qualifying Exam at Pearson VUE
12
QE Blueprint Content Domains
ABOG REI Qualifying Exam Blueprint (public)
$2,195
2026 QE Application Fee
ABOG Subspecialty Qualifying Exam
36 months
ACGME REI Fellowship Length
AY2022-2023 ABOG standards (18 months core clinical)
July 20, 2026
QE Exam Date
ABOG 2026 subspecialty schedule
2 steps
Qualifying + Certifying
Written MCQ, then oral exam in Dallas
ABOG REI is a two-step subspecialty certification: a ~4-hour computer-based Qualifying Exam (single-best-answer MCQs at Pearson VUE on July 20, 2026) followed by an oral Certifying Examination in Dallas. The ABOG REI QE Blueprint allocates Basic Science & Pathophysiology 15%, Diagnostic Techniques 10%, Reproductive Endocrine Disease 15%, Female Fertility/PCOS 5%, Male Infertility 3%, RPL 2%, Fertility Preservation 5%, ART Techniques 10%, Complex Reproductive Disorders 10%, Reproductive Surgery 5%, Genetics 10%, and Core Competencies/Cross Content 10%. 2026 QE fee is $2,195; CE fee is $1,275. Passing is criterion-referenced; first-time pass rates run ~85-92%.
Sample ABOG Reproductive Endocrinology and Infertility Practice Questions
Try these sample questions to test your ABOG Reproductive Endocrinology and Infertility exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1The hypothalamic-pituitary-ovarian axis relies on pulsatile GnRH secretion from the arcuate nucleus. What frequency of GnRH pulses preferentially stimulates FSH over LH release?
2Which ovarian hormone, produced by the corpus luteum, is primarily responsible for maintenance of early pregnancy until the luteoplacental shift occurs?
3The two-cell two-gonadotropin theory of estrogen synthesis in the ovary describes which steroidogenic pathway?
4Implantation of the human embryo occurs approximately how many days post-ovulation, and which endometrial window is critical?
5Anti-Müllerian hormone (AMH) is produced by which ovarian cell type and is a biomarker of what?
6The LH surge triggers which ovarian events leading to ovulation?
7A 24-year-old with primary amenorrhea is found to have a 45,X karyotype, short stature, and streak ovaries. What is the expected FSH level and reproductive implications?
8A 22-year-old with primary amenorrhea presents with anosmia. Her FSH, LH, and estradiol are all low. What is the most likely diagnosis?
9A 26-year-old with oligomenorrhea has mildly elevated 17-hydroxyprogesterone (17-OHP) of 280 ng/dL on follicular phase morning blood draw. What is the next step to confirm or exclude non-classic (late-onset) congenital adrenal hyperplasia from 21-hydroxylase deficiency?
10A 28-year-old patient meets Rotterdam criteria for PCOS. Which of the following combinations is INSUFFICIENT for PCOS diagnosis?
About the ABOG Reproductive Endocrinology and Infertility Exam
The ABOG Reproductive Endocrinology and Infertility (REI) subspecialty certification is a two-step process administered by the American Board of Obstetrics and Gynecology. Step 1 is the Qualifying Examination — a computer-based multiple-choice written exam at Pearson VUE administered on July 20, 2026. Step 2 is the Certifying Examination — an oral exam in Dallas that includes thesis defense, case-list review, and structured cases. Under the revised AY2022-2023 standards, candidates complete an 18-month REI Core Clinical Experience within a 36-month ACGME-accredited REI fellowship, defend an approved thesis, and hold active ABOG Specialty certification. The QE blueprint follows the ABOG REI Qualifying Exam Blueprint with 10 content domains, while the CE blueprint redistributes question weights across the same domains.
Questions
200 scored questions
Time Limit
Approximately 4 hours (computer-based Qualifying Exam)
Passing Score
Criterion-referenced scaled passing standard (ABOG REI Division, modified Angoff)
Exam Fee
$2,195 QE application + $1,275 CE fee (ABOG 2026) (American Board of Obstetrics and Gynecology (ABOG) — Division of Reproductive Endocrinology and Infertility)
ABOG Reproductive Endocrinology and Infertility Exam Content Outline
Basic Science, Physiology, and Pathophysiology
Hormone structure and signaling (GnRH, gonadotropins LH/FSH, steroidogenesis, HPO axis), clinical pharmacology of reproductive drugs (clomiphene, letrozole, gonadotropins, GnRH agonists/antagonists), laboratory assays, pathology of normal and abnormal reproductive tissues, implantation biology, embryogenesis of reproductive systems, gamete biology, pre-implantation embryo development.
Diagnostic Techniques and Interpretation
Molecular biology (immunohistochemistry, PCR, endocrine assays), imaging (HSG for tubal patency, transvaginal ultrasound, saline infusion sonography/SIS, MRI for Müllerian anomalies), provocative testing (ACTH stimulation, dexamethasone suppression, clomiphene challenge), andrology including semen analysis per WHO 2021 criteria (concentration ≥16 M/mL, total motility ≥42%, normal morphology ≥4%) and DNA fragmentation testing.
Reproductive Endocrine Function and Disease
Normal and abnormal puberty (Tanner staging, delayed/precocious puberty), menopause (FSH >25 IU/L + amenorrhea), neuroendocrine disorders (Kallmann syndrome with anosmia, Sheehan, panhypopituitarism), gonad disorders (Turner 45,X with elevated FSH, Swyer, DSD), thyroid and adrenal disorders, 21-hydroxylase deficiency (elevated 17-OHP), androgen disorders (PCOS, idiopathic hirsutism), amenorrhea workup, gender-affirming hormone therapy.
Female Fertility, Infertility, and PCOS
Comprehensive infertility workup (history, BMI, ovulatory function, tubal patency, ovarian reserve: AMH <1.0 ng/mL suggests diminished reserve, AFC <5-7), ovulation induction (letrozole first-line for PCOS per PPCOS II), controlled ovarian hyperstimulation, IUI, PCOS Rotterdam criteria (2 of 3: oligo/anovulation, hyperandrogenism, polycystic ovarian morphology), metabolic complications, third-party reproduction, LGBTQ+ family building, early pregnancy loss.
Male Infertility
Male infertility evaluation (history including varicocele, chronic disease, medications, environmental exposures, steroid use), semen analysis per WHO 2021, hormonal testing (FSH, LH, total T, prolactin), genetic testing (karyotype, Y-microdeletion, CFTR for CBAVD), diagnosis (endocrine, primary testicular, obstructive, idiopathic), non-surgical treatments (clomiphene, letrozole, hCG), surgical options (TESE, MESA, vasectomy reversal, varicocele repair), ICSI indications.
Recurrent Pregnancy Loss
RPL definition (ASRM 2020: two or more clinical pregnancy losses), causes and relative incidence (unexplained 50%, genetic/aneuploidy, anatomic, endocrine, APS with persistent LAC/aCL/anti-β2GP1 repeated at 12 weeks, immunologic, thrombophilia), workup, management (progesterone supplementation for luteal support, thyroid optimization, aspirin + LMWH for APS), PGT for balanced translocation carriers, counseling on euploid vs aneuploid loss.
Fertility Preservation
Indications (oncofertility before gonadotoxic therapy, elective oocyte cryopreservation, genetic conditions), diagnostic testing (AMH, AFC), counseling on options (oocyte/embryo cryopreservation, ovarian tissue cryopreservation, GnRH agonists during chemo), modifications to ART for cancer patients (letrozole/aromatase inhibitors to suppress estrogen in ER+ breast cancer, random start protocols to minimize delay), ovarian transposition before pelvic RT, fertility-sparing GYN surgery.
Assisted Reproductive Technology (ART) Techniques
IVF stimulation protocols (long agonist, antagonist, microdose flare), trigger (hCG 10,000 IU or GnRH agonist for OHSS risk), transvaginal ultrasound-guided oocyte retrieval 34-36 hr post-trigger, ICSI indications, embryo culture (day 3 cleavage vs day 5-6 blastocyst), fresh vs frozen embryo transfer, luteal support (progesterone), OHSS prevention (antagonist protocol, GnRH agonist trigger, cabergoline), ultrasound-guided embryo transfer.
Complex Reproductive Disorders
Endometriosis (ASRM staging I-IV, medical management with combined OCPs/progestins/GnRH analogs/elagolix, surgical excision vs ablation), pelvic pain and adhesive disease, leiomyomata (submucosal affecting implantation — myomectomy improves fertility, intramural controversial, subserosal no impact), Müllerian anomalies (ASRM 2021 classification: septate uterus — hysteroscopic metroplasty, bicornuate, unicornuate, didelphys, MRKH), Asherman syndrome (hysteroscopic lysis), ambiguous genitalia/DSD.
Complex Reproductive Surgical Procedures
Diagnostic and operative hysteroscopy (septum resection, polypectomy, submucosal myomectomy, IUA lysis), diagnostic and operative laparoscopy for endometriosis and adnexal pathology, tubal surgery for fertility restoration (tubal reversal, tuboplasty), abdominal myomectomy, laparotomy procedures, surgical management of Müllerian anomalies, vaginal septum excision, ovarian cystectomy, salpingectomy for hydrosalpinx before IVF.
Genetics
Inheritance patterns (AD, AR, X-linked, mitochondrial), expanded carrier screening (ACMG recommendations), pre-implantation genetic testing — PGT-A (aneuploidy, trophectoderm biopsy day 5-6), PGT-M (monogenic, e.g., cystic fibrosis, sickle cell, BRCA), PGT-SR (structural rearrangements for translocation carriers), antenatal genetic testing (cfDNA, CVS 10-13 weeks, amniocentesis ≥15 weeks), counseling on genetic testing results as they relate to infertility diagnosis (e.g., fragile X premutation and POI).
Core Competencies and Cross Content
Ethics and professionalism, patient safety (root cause analysis, time-outs, checklists), interpersonal communication with diverse populations, systems-based practice (cost-awareness, multidisciplinary team care), practice-based learning and improvement, evidence-based medicine (ERAS protocols), research methodology for thesis defense (study design, biostatistics: sensitivity/specificity/PPV/NPV, RR vs OR, NNT).
How to Pass the ABOG Reproductive Endocrinology and Infertility Exam
What You Need to Know
- Passing score: Criterion-referenced scaled passing standard (ABOG REI Division, modified Angoff)
- Exam length: 200 questions
- Time limit: Approximately 4 hours (computer-based Qualifying Exam)
- Exam fee: $2,195 QE application + $1,275 CE fee (ABOG 2026)
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
ABOG Reproductive Endocrinology and Infertility Study Tips from Top Performers
Frequently Asked Questions
What is the ABOG Reproductive Endocrinology and Infertility subspecialty exam?
ABOG REI certification is a two-step voluntary subspecialty credential administered by the American Board of Obstetrics and Gynecology. Step 1 is the Qualifying Examination (QE), a computer-based multiple-choice written exam delivered at Pearson VUE testing centers. Step 2 is the Certifying Examination (CE), an oral exam at the ABOG National Center in Dallas that includes thesis defense, case-list review, and structured cases. The QE follows a 10-domain blueprint covering basic science, endocrine disease, infertility, ART, genetics, and reproductive surgery. Candidates must hold ABOG Specialty certification and complete an ACGME-accredited REI fellowship (36 months, with 18 months REI Core Clinical Experience under 2022-2023 standards).
How many questions are on the ABOG REI Qualifying Exam and how long is it?
The REI Qualifying Exam is a computer-based single-best-answer multiple-choice exam delivered at Pearson VUE over approximately 4 hours. The published ABOG REI QE Blueprint weights Basic Science/Physiology/Pathophysiology at 15%, Reproductive Endocrine Function and Disease at 15%, Diagnostic Techniques at 10%, Complex Reproductive Disorders at 10%, ART Techniques at 10%, Genetics at 10%, Core Competencies/Cross Content at 10%, Female Fertility/PCOS at 5%, Fertility Preservation at 5%, Complex Reproductive Surgery at 5%, Male Infertility at 3%, and Recurrent Pregnancy Loss at 2%.
What is the passing score for the ABOG REI exam?
Both the Qualifying and Certifying Examinations use criterion-referenced scaled passing standards set by the ABOG REI Division through a modified Angoff standard-setting process. Scores are not curved — candidates are measured against a content-expert performance standard. Reports include pass/fail plus diagnostic performance by content domain. Historical first-time REI QE pass rates run approximately 85-92% per the ABOG public pass-rate tool.
What are the eligibility requirements for ABOG REI certification?
Candidates must (1) hold active primary ABOG Specialty (OB-GYN) certification; (2) complete an ACGME-accredited REI fellowship — under the AY2022-2023 revised standards this is 36 months total with an 18-month REI Core Clinical Experience covering the expanded blueprint domains; (3) successfully defend an approved thesis before applying for the CE; (4) submit a compliant case list for the CE; and (5) maintain active, unrestricted medical licensure.
How much does the ABOG REI exam cost?
For 2026, the Subspecialty Qualifying Examination fee is $2,195 when applied for by February 15, 2026, with a $400 late fee if applied March 15 or earlier. The Certifying Examination fee is $1,275 when submitted July 1-31, 2026, with a $400 late fee for August submissions. CE application fee is additional ($1,125 on-time). These fees are set by ABOG and apply across all subspecialties.
When is the 2026 ABOG REI exam administered?
The 2026 Subspecialty Qualifying Examination is scheduled for July 20, 2026 at Pearson VUE testing centers. The 2026 Subspecialty Certifying Examination is administered in person at the ABOG National Center for Certification and Continuing Education in Dallas during exam weeks of October 5-8, November 2-5, November 16-19, and December 7-10, 2026. Candidates are assigned a specific week after application approval (by June 30, 2026).
What are the highest-yield topics on the ABOG REI exam?
High-yield topics include PCOS Rotterdam criteria (2 of 3: oligo/anovulation, hyperandrogenism, PCO morphology) with letrozole first-line for ovulation induction per PPCOS II, ovarian reserve testing (AMH <1.0 ng/mL suggesting DOR, AFC <5-7), WHO 2021 semen analysis thresholds, Kallmann syndrome (anosmia + hypogonadotropic hypogonadism from KAL1/ANOS1), Turner syndrome (45,X) workup with elevated FSH, premature ovarian insufficiency (FSH >25 IU/L on two occasions + amenorrhea before age 40), fragile X premutation and POI, OHSS prevention (antagonist protocol, agonist trigger), antiphospholipid syndrome workup for RPL (persistent LAC/aCL/anti-β2GP1 at 12 weeks), and Müllerian anomaly classification.
How should I study for the ABOG REI exam?
Use the ABOG REI QE Blueprint as your master syllabus and distribute study time by domain weight. Ground your review on ASRM practice committee documents, ACOG committee opinions, and the Speroff reference textbook. Master ovarian reserve testing, stimulation protocols (antagonist, long agonist, microdose flare), PGT-A/M/SR indications, endometriosis staging and management, Müllerian anomaly classification (ASRM 2021), PCOS Rotterdam criteria with letrozole-first induction, POI/DOR workup including fragile X, APS criteria for RPL, and fertility preservation protocols for oncofertility. Review statistics and study design for CE thesis defense.