Prenatal care, labor complications, and common gynecologic presentations tested on USMLE Step 2 CK.
45 cards · mixed cards · AI-written, checked twice. Edit anything.
- When should the first prenatal visit typically occur?
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During the first trimester, ideally by around 8 weeks gestation.- What is Naegele's rule used to calculate?
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Estimated date of delivery: take the LMP, subtract 3 months, add 7 days (and 1 year if needed).- Which method most accurately dates a pregnancy?
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First-trimester ultrasound (crown-rump length).- What four analytes make up the second-trimester quad screen?
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AFP, hCG, estriol, and inhibin A.- What is the screening test for gestational diabetes performed at 24 to 28 weeks?
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1-hour 50g glucose challenge test.- How is gestational diabetes diagnosed after an abnormal screening test?
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3-hour 100g oral glucose tolerance test.- When is Rh immune globulin (RhoGAM) given to an Rh-negative mother?
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At 28 weeks gestation, and again postpartum if the infant is Rh-positive.- When is Group B Streptococcus (GBS) screening performed?
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At 35 to 37 weeks gestation.- What antibiotic is first-line for intrapartum GBS prophylaxis?
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Penicillin G.- Why is folic acid supplementation recommended before and during early pregnancy?
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To reduce the risk of fetal neural tube defects.- When is the fetal anatomy (anomaly) ultrasound performed?
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18 to 20 weeks gestation.- When is nuchal translucency measured?
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11 to 14 weeks gestation.- During which weeks of pregnancy is Tdap vaccination recommended?
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27 to 36 weeks gestation, in every pregnancy.- Preeclampsia is diagnosed as new-onset ____ after 20 weeks gestation.
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hypertension and proteinuria- What systolic/diastolic BP reading defines severe-range hypertension in preeclampsia?
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160/110 mmHg or higher.
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