A nurse is caring for a client who is 5 hours postpartum following a vaginal birth of a newborn weighing 9 lb 6 oz (4252 g). The nurse should recognize that this client is at risk for which of the following postpartum complications?

Choice A rationalePuerperal infection, an infection of the reproductive tract after childbirth, is a risk factor for all postpartum women. However, a large newborn size (macrosomia) increases the risk of prolonged labor, increased instrumentation during delivery, and postpartum hemorrhage, which indirectly increases the risk of infection but is not the most direct immediate risk related to the newborn's weight.Choice B rationaleRetained placental fragments are a risk factor when the placenta does not deliver intact. While a large newborn can sometimes be associated with difficulties during placental delivery, it is not the primary direct risk factor immediately following birth. Uterine atony is a more immediate and direct risk related to uterine overdistension.Choice C rationaleThrombophlebitis, the formation of blood clots in the veins, is a postpartum risk factor related to hormonal changes, immobility, and hypercoagulability. While factors like prolonged labor (more common with large babies) can contribute, it is not the most immediate and direct risk in the first few hours postpartum for a woman who delivered a large newborn.Choice D rationaleA newborn weighing 9 lb 6 oz (4252 g) is considered macrosomic. This large size can lead to overdistension of the uterus during pregnancy and labor. Uterine overdistension impairs the ability of the uterine muscles to contract effectively after delivery, a condition known as uterine atony. Uterine atony is the primary and most immediate risk for postpartum hemorrhage in women who have delivered large newborns. .