OB/GYN EORE Prenatal Care & Normal Pregnancy (Internal Medicine) | 30+ Questions | GTPAL, Fundal Height, Labs, Trimesters | 2025/2026

This document presents 30+ high-yield, exam-verified flashcard-style Q&A items on prenatal care and normal pregnancy, tailored to the OB/GYN End-of-Rotation Exam (EORE) for the 2025/2026 academic year. It focuses on pregnancy milestones, diagnostic testing by trimester, obstetric history documentation, and fetal development benchmarks—making it an ideal quick-reference for clinical rotation prep or review. Early pregnancy content includes: Calculating due date using Nagele’s rule: (LMP - 3 months) + 7 days GTPAL system for documenting obstetric history (Gravida, Term, Preterm, Abortions, Living children), with sample breakdowns (e.g., G5P3114) Initial prenatal visit timing (6–8 weeks) and prenatal visit frequency by gestational age Fetal development markers: Fundal height starts at 20 weeks (level of umbilicus) Fetal heart tones detectable by 9–12 weeks (normal 120–160 bpm) Quickening (first fetal movement): 18–20 weeks for nulliparas; earlier for multiparas Cervical dilation checks begin after 36 weeks Trimester-specific diagnostics: First trimester (Weeks 1–12): PAPP-A, free β-hCG, and nuchal translucency for trisomies 13, 18, 21 Chorionic villus sampling (CVS) at 10–13 weeks for early diagnosis Second trimester (Weeks 13–27): Maternal serum screen: unconjugated estriol, AFP, inhibin A ↓AFP + ↓estriol + ↑inhibin A = ↑risk of Down syndrome Amniocentesis for neural tube defects (15–18 weeks) Anatomy ultrasound and gender reveal at 18–20 weeks Third trimester (Weeks 28–birth): Nonstress test (NST), biophysical profile, and Group B strep screening Vaccinations: Tdap and RhoGAM at 28 weeks Gestational diabetes screening: 24–28 weeks Plan for delivery or induction by 40+ weeks This study guide is most suitable for: PA and medical students studying for the OB/GYN EORE NP and nursing students in maternal health or OB clinical rotations USMLE Step 2, COMLEX, or PANCE examinees focusing on prenatal care, trimester testing, and fetal development Its trimester-based structure and clinical insights provide rapid reinforcement for both academic and practical exam readiness. Keywords: GTPAL, Nagele’s rule, prenatal visits, fundal height, fetal heart tones, quickening, CVS, amniocentesis, nuchal translucency, first trimester screen, maternal AFP, gestational diabetes, Group B strep, Rhogam, Tdap, nonstress test, biophysical profile, pregnancy trimesters, obstetric milestones