A nurse is caring for a newborn who has macrosomia and whose mother has diabetes mellitus. The nurse should recognize which of the following newborn complications as the priority focus of care?

Choice A reason: Orthostatic hypotension is a normal finding in the postpartum period, because the client has a sudden decrease in blood volume after delivery. The nurse should instruct the client to change positions slowly and drink plenty of fluids.

Choice B reason: Urine output of 3,000 mL in 12 hr is a normal finding in the postpartum period, because the client has increased renal perfusion and diuresis after delivery. The nurse should encourage the client to empty the bladder frequently and monitor the intake and output.

Choice C reason: Heart rate 160/min is an abnormal finding in the postpartum period, because it indicates tachycardia, which can be a sign of infection, dehydration, hemorrhage, or cardiac complications. The nurse should assess the client's temperature, blood pressure, pulse, respirations, skin color, lochia, and pain level, and report any abnormal findings to the provider.

Choice D reason: Fundus palpable at the umbilicus is a normal finding in the postpartum period, because the uterus gradually involutes and descends into the pelvis after delivery. The nurse should palpate the fundus and check for firmness, position, and height. The fundus should be at the level of the umbilicus immediately after delivery, and descend about one fingerbreadth per day.

Choice A reason: Molar pregnancy is a risk factor for hyperemesis gravidarum, as it is a gestational trophoblastic disease that causes an abnormal growth of the placenta and the production of high levels of human chorionic gonadotropin (hCG), which is a hormone that stimulates nausea and vomiting. Molar pregnancy can cause severe and persistent hyperemesis gravidarum, as well as vaginal bleeding, uterine enlargement, and preeclampsia.

Choice B reason: Previous history of hyperemesis gravidarum is a risk factor for hyperemesis gravidarum, as it suggests a genetic or physiological predisposition to the condition. Hyperemesis gravidarum is a severe form of nausea and vomiting that occurs in pregnancy, and it can cause dehydration, electrolyte imbalance, weight loss, and malnutrition. Hyperemesis gravidarum can recur in subsequent pregnancies, especially if the mother has the same partner, the same sex of the fetus, or a short interval between pregnancies.

Choice C reason: Oligohydramnios is not a risk factor for hyperemesis gravidarum, as it is a low level of amniotic fluid that surrounds the fetus. Oligohydramnios is not related to hyperemesis gravidarum, and it is not a cause or a consequence of it. Oligohydramnios can affect the fetal development and the delivery, as it can cause fetal growth restriction, cord compression, or meconium aspiration.

Choice D reason: Multiple fetal gestation is a risk factor for hyperemesis gravidarum, as it is a condition where the mother is carrying more than one fetus. Multiple fetal gestation can cause higher levels of hCG, estrogen, and progesterone, which are hormones that stimulate nausea and vomiting. Multiple fetal gestation can cause more severe and prolonged hyperemesis gravidarum, as well as preterm labor, anemia, and preeclampsia.