Final answer:
Among the mentioned patients, the one with placenta previa should be monitored most carefully for signs of placental abruption.
Step-by-step explanation:
Placental abruption refers to the separation of the placenta from the uterine wall before delivery. This condition is a serious complication that can cause bleeding and endanger the health of the fetus and mother. Among the patients mentioned, the one with placenta previa should be monitored most carefully for signs of placental abruption.
Placenta previa, as mentioned in Figure 28.7, occurs when the placenta partially or completely covers the cervix. It is the leading cause of antepartum hemorrhage and can contribute to the risk of placental abruption. Therefore, it is crucial to closely monitor this patient for any signs or symptoms of placental abruption, such as vaginal bleeding or sudden intense abdominal pain.