Postpartum contraception after venous thromboembolism — USMLE Step 3 MCQ
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Correct answer: C — Plan cesarean delivery at 34 to 37 weeks before labor or membrane rupture
The best answer is “Plan cesarean delivery at 34 to 37 weeks before labor or membrane rupture”. Vasa previa places unprotected fetal vessels at risk of catastrophic rupture during labor or membrane rupture. Planned prelabor cesarean in the recommended gestational window balances hemorrhage risk against prematurity; timing is individualized with symptoms, cervical findings and logistics.
Reference: SMFM Consult Series #37: Diagnosis and Management of Vasa Previa: https://publications.smfm.org/publications/215-society-for-maternal-fetal-medicine-consult-series-37/