A nurse is caring for a client who has severe pre-eclampsia and is receiving hydralazine IV.

Which of the following adverse effects should the nurse monitor for?

This is a manifestation of severe preeclampsia that indicates liver involvement and can precede a seizure.

The nurse should report this finding to the provider immediately and prepare for possible delivery of the baby.

Choice A is wrong because blood pressure of 150/90 mm Hg is a sign of mild preeclampsia, not severe.Severe preeclampsia is diagnosed when the systolic pressure is 160 mm Hg or higher or the diastolic pressure is 110 mm Hg or higher.

Choice B is wrong because urine protein of 2+ is also a sign of mild preeclampsia, not severe.Severe preeclampsia is diagnosed when the urine protein is 3+ or higher.

Choice D is wrong because facial edema is a common finding in normal pregnancy and does not indicate severe preeclampsia.Other signs of severe preeclampsia include headache, blurred vision, oliguria, thrombocytopenia, and pulmonary edema.

Absence of seizures indicates a therapeutic response to magnesium sulfate therapy for a client with eclampsia.Magnesium sulfate is used to prevent seizures in women with preeclampsia, a complication of pregnancy characterized by high blood pressure and organ dysfunction.Magnesium sulfate may act as a vasodilator, an anticonvulsant, and a protector of the blood-brain barrier.

Choice B is wrong because a decrease in urine output may indicate renal impairment, which is a complication of preeclampsia and eclampsia.

Choice C is wrong because an increase in deep tendon reflexes may indicate hyperreflexia, which is a sign of increased neuromuscular irritability and a risk factor for seizures.

Choice D is wrong because an increase in respiratory rate may indicate respiratory distress, which can be caused by pulmonary edema, another complication of preeclampsia and eclampsia.

Normal ranges for urine output are 0.5 to 1 mL/kg/hour, for deep tendon reflexes are 1+ to 2+, and for respiratory rate are 12 to 20 breaths per minute.