A nurse is providing discharge teaching to a client who had pre-eclampsia and delivered a healthy newborn.

Which of the following statements by the client indicates an understanding of the teaching?

Calcium gluconate is the antidote for magnesium sulfate toxicity because it reverses the effects of magnesium on the neuromuscular and cardiovascular systems.

Magnesium sulfate can cause respiratory depression, hypotension, bradycardia, and cardiac arrest in high doses.

Choice B. Naloxone is wrong because it is the antidote for opioid overdose, not magnesium sulfate toxicity.

Naloxone blocks the opioid receptors and restores breathing and consciousness.

Choice C. Flumazenil is wrong because it is the antidote for benzodiazepine overdose, not magnesium sulfate toxicity.

Flumazenil binds to the benzodiazepine receptors and reverses the sedative and hypnotic effects.

Choice D. Protamine sulfate is wrong because it is the antidote for heparin overdose, not magnesium sulfate toxicity.

Protamine sulfate neutralizes the anticoagulant effect of heparin and prevents bleeding.

Normal ranges for magnesium are 1.5 to 2.5 mEq/L or 0.75 to 1.25 mmol/L.

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.