A nurse in a clinic is assessing a client who is at 8 weeks of gestation and has been diagnosed with hyperemesis gravidarum. Which of the following is not a risk factor for hyperemesis gravidarum?

Choice A reason: "I know I am at increased risk to develop type 2 diabetes." is a correct statement, because it indicates that the client understands the long-term implications of gestational diabetes. The client should be aware that gestational diabetes increases the risk of developing type 2 diabetes later in life, and that she should have regular screening and follow-up.

Choice B reason: "I will take my glyburide daily with breakfast." is a correct statement, because it indicates that the client understands the medication regimen for gestational diabetes. The client should take glyburide, a sulfonylurea that lowers blood glucose levels, as prescribed by the provider, and monitor her blood glucose levels before and after meals.

Choice C reason: "I will reduce my exercise schedule to 3 days a week." is an incorrect statement, because it indicates that the client does not understand the importance of physical activity for gestational diabetes. The client should exercise at least 30 minutes a day, 5 days a week, unless contraindicated by the provider. Exercise can help improve insulin sensitivity, lower blood glucose levels, and prevent excessive weight gain.

Choice D reason: "I should limit my carbohydrates to 50% of caloric intake." is a correct statement, because it indicates that the client understands the dietary guidelines for gestational diabetes. The client should consume a balanced diet that provides adequate but not excessive amounts of carbohydrates, protein, and fat, and that is consistent in carbohydrate intake throughout the day.

Choice A reason: This statement is incorrect, as it is not the definition of polyhydramnios, but rather a possible cause of it. Polyhydramnios is a condition where the amniotic fluid volume exceeds 2,000 mL at term, or the amniotic fluid index (AFI) is greater than 25 cm. Polyhydramnios can occur in multiple pregnancies, as the fetuses produce more urine and fluid than a single fetus.

Choice B reason: This statement is incorrect, as it is not the definition of polyhydramnios, but rather a possible complication of it. Polyhydramnios can cause fetal anomalies, such as esophageal atresia, anencephaly, or neural tube defects, which impair the swallowing or absorption of the amniotic fluid. Polyhydramnios can also cause fetal growth restriction or distress, as the excess fluid can compress the umbilical cord or the placenta, and reduce the blood flow and oxygen delivery to the fetus.

Choice C reason: This statement is correct, as it is the definition of polyhydramnios, which is a condition where the amniotic fluid volume exceeds 2,000 mL at term, or the amniotic fluid index (AFI) is greater than 25 cm. Polyhydramnios can be diagnosed by ultrasound, and it can cause maternal and fetal complications, such as preterm labor, premature rupture of membranes, placental abruption, or cord prolapse.

Choice D reason: This statement is incorrect, as it is not the definition of polyhydramnios, but rather a marker of fetal anomalies. Alpha-fetoprotein (AFP) is a protein that is produced by the fetus, and it can be measured in the maternal serum or the amniotic fluid. An elevated level of AFP in the amniotic fluid can indicate fetal anomalies, such as neural tube defects, abdominal wall defects, or renal anomalies, which can cause polyhydramnios.