The correct answer is choice D.

No history of endocrine disorders. This factor increases the client’s risk of developing gestational diabetes because endocrine disorders such as thyroid disease or polycystic ovary syndrome can affect insulin resistance and glucose metabolism.

Choice A is wrong because having a previous baby with low birth weight is not a risk factor for gestational diabetes. In fact, having a previous baby with high birth weight (> 9 pounds) is a risk factor.

Choice B is wrong because being of Caucasian origin is not a risk factor for gestational diabetes. In fact, being of non-Caucasian origin such as African American, Hispanic, Native American, Asian American, or Pacific Islander is a risk factor.

Choice C is wrong because having no family history of diabetes is not a risk factor for gestational diabetes. In fact, having a family history of diabetes (especially type 2 diabetes) in a first-degree relative (parent or sibling) is a risk factor.

Some other risk factors for gestational diabetes include being older than 25 years, being overweight or obese, having prediabetes or impaired glucose tolerance, having a history of gestational diabetes in a previous pregnancy, having hypertension or preeclampsia, or having polycystic ovary syndrome.

Normal ranges for fasting plasma glucose are 60 to 99 mg/dL for nonpregnant women and 70 to 95 mg/dL for pregnant women. Normal ranges for oral glucose tolerance test are less than 140 mg/dL at 1 hour and less than 120 mg/dL at 2 hours for nonpregnant women and less than 180 mg/dL at 1 hour and less than 155 mg/dL at 2 hours for pregnant women.