A woman diagnosed with marginal placenta previa gave birth vaginally 15 minutes ago. At the present time she is at the greatest risk for:

Choice A reason: Intense abdominal pain is the most prevalent clinical manifestation of abruptio placentae, as it indicates the detachment of the placenta from the uterine wall and the bleeding into the uterine muscle. The pain can be localized or diffuse, and it can be constant or intermittent. The pain can also radiate to the back or the shoulder.

Choice B reason: Cramping is not the most prevalent clinical manifestation of abruptio placentae, as it is not specific to the condition. Cramping can occur in normal pregnancy or in other complications such as preterm labor, infection, or cervical insufficiency.

Choice C reason: Uterine activity is not the most prevalent clinical manifestation of abruptio placentae, as it is not specific to the condition. Uterine activity can occur in normal pregnancy or in other complications such as preterm labor, infection, or placenta previa.

Choice D reason: Bleeding is not the most prevalent clinical manifestation of abruptio placentae, as it may or may not be present. Bleeding can be concealed or revealed, depending on the location and extent of the placental separation. Concealed bleeding occurs when the blood is trapped behind the placenta and does not exit the vagina. Revealed bleeding occurs when the blood passes through the cervix and exits the vagina.

Choice A reason: A previous birth of a large infant (macrosomia) is a risk factor for gestational diabetes mellitus (GDM). A large infant may indicate that the mother had high blood glucose levels during pregnancy, which can cause the fetus to grow larger than normal. Women who have had a large infant are more likely to develop GDM in subsequent pregnancies.

Choice B reason: Underweight before pregnancy is not a risk factor for GDM. In fact, being overweight or obese before pregnancy is a risk factor for GDM, as it increases insulin resistance and makes it harder for the body to use glucose effectively.

Choice C reason: A previous diagnosis of type 2 diabetes mellitus is not a risk factor for GDM. It is a contraindication for GDM, as it means that the woman already has diabetes before pregnancy. GDM is a condition that develops during pregnancy and usually resolves after delivery.

Choice D reason: Maternal age younger than 25 years is not a risk factor for GDM. In fact, being older than 25 years is a risk factor for GDM, as it increases the risk of insulin resistance and other metabolic changes that can affect glucose tolerance.