A 34-year-old woman, gravida 3, para 2, comes to your office for prenatal care.

This patient’s obstetric history suggests recurrent fetal macrosomia (birthweight > 4000–4500 g) and rapid (precipitous) labours. MCCQE objectives emphasize identifying maternal risk factors for postpartum hemorrhage (PPH) , particularly those associated with uterine atony , the most common cause of PPH. Delivery of a macrosomic infant increases uterine overdistension, which reduces effective postpartum uterine contraction and predisposes to atony and hemorrhage. In addition, precipitous labour can be associated with genital tract trauma, which can also contribute to postpartum bleeding, but the strongest and most consistent risk factor in the options provided is PPH from atony related to prior large infants.

The other choices are less supported by the stem: prior macrosomic term deliveries do not inherently increase risk of preterm delivery, gestational hypertension, or DVT. Therefore, the most likely risk to anticipate and plan for is postpartum hemorrhage, prompting proactive intrapartum planning (active management of the third stage, readiness with uterotonics, and risk-based monitoring).