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: Nonreactive is not the correct result, as it indicates that the FHR does not show adequate accelerations with fetal movement. A nonreactive NST means that the FHR does not increase by at least 15 beats/min for at least 15 seconds in a 20-minute period. A nonreactive NST may suggest fetal hypoxia (low oxygen) or fetal sleep.

Choice B reason: Reactive is the correct result, as it indicates that the FHR shows adequate accelerations with fetal movement. A reactive NST means that the FHR increases by at least 15 beats/min for at least 15 seconds twice or more in a 20-minute period. A reactive NST is reassuring and suggests that the fetus is well-oxygenated and healthy.

Choice C reason: Positive is not the correct result, as it is not used to describe the NST. Positive is a term used for the contraction stress test (CST), which is a different test that measures the FHR in response to uterine contractions. A positive CST means that the FHR shows late decelerations (decreases in the FHR that begin after the peak of a contraction and return to the baseline after the contraction ends) with at least 50% of the contractions. A positive CST indicates uteroplacental insufficiency (a condition where the placenta does not deliver enough oxygen and nutrients to the fetus) and fetal distress.

Choice D reason: Negative is not the correct result, as it is also not used to describe the NST. Negative is another term used for the CST, which is a different test that measures the FHR in response to uterine contractions. A negative CST means that the FHR does not show any late decelerations during at least three contractions in a 10-minute period. A negative CST is reassuring and suggests that the fetus is well-oxygenated and can tolerate labor.

Choice A reason: Hypoinsulinemia is not a major neonatal complication of the infant of a diabetic mother. It is a condition of low insulin levels in the blood, which can cause hyperglycemia.

Choice B reason: Hypercalcemia is not a major neonatal complication of the infant of a diabetic mother. It is a condition of high calcium levels in the blood, which can cause muscle weakness, confusion, and kidney stones.

Choice C reason: Hypobilirubinemia is not a major neonatal complication of the infant of a diabetic mother. It is a condition of low bilirubin levels in the blood, which can cause pale skin and eyes.

Choice D reason: Hypoglycemia is a major neonatal complication of the infant of a diabetic mother. It is a condition of low blood sugar levels, which can cause seizures, lethargy, and brain damage.

Choice E reason: None of the above is not a correct answer. There is one major neonatal complication of the infant of a diabetic mother, which is hypoglycemia.