A pregnant client with gestational diabetes mellitus (GDM) is at risk for which of the following maternal complications?

A. Hypotension and preterm labor: Gestational diabetes is more commonly associated with hypertension rather than hypotension. Although preterm labor can occur, it is not a direct or primary complication of GDM. These conditions are not typically linked with poor glucose control. B. Placenta previa and fetal growth restriction: Placenta previa is related to abnormal placental implantation, not glucose regulation. Fetal growth restriction is more common in placental insufficiency, while GDM is often associated with fetal macrosomia due to excess glucose availability. C. Hyperemesis gravidarum and anemia: Hyperemesis gravidarum usually occurs in early pregnancy and is related to hormonal changes, not diabetes. Anemia is common in pregnancy but is not directly caused by GDM. These are not typical maternal complications of gestational diabetes. D. Polyhydramnios and hypertension: GDM can lead to polyhydramnios due to increased fetal urination in response to hyperglycemia. Hypertension is also more prevalent in clients with GDM due to vascular changes and increased metabolic stress. These are well-established maternal risks.