Magnesium sulfate is given to women with preeclampsia and eclampsia to:

The patient is showing signs of magnesium toxicity, such as respiratory depression, hyporeflexia, and flushing.

Magnesium sulfate is a high-alert medication that can cause serious adverse effects if not monitored closely.

The nurse should stop the infusion immediately and notify the provider.

Choice A is wrong because calling for a stat magnesium sulfate level will not address the immediate problem of toxicity.

The nurse should act quickly to prevent further complications.

Choice B is wrong because administering oxygen will not reverse the effects of magnesium toxicity.

Oxygen may be helpful for respiratory distress, but it will not correct the underlying cause.

Choice D is wrong because hydralazine is an antihypertensive medication that lowers blood pressure.

The patient’s blood pressure is already within the normal range for a pregnant woman with preeclampsia (140-160/90-110 mm Hg).

Hydralazine may cause hypotension and fetal distress.

This is a normal respiratory change in pregnancy caused by elevated levels of estrogen. Estrogen increases blood flow and causes the nasal mucosa to swell, leading to congestion and nosebleeds. This condition is called pregnancy rhinitis and affects up to 20% of pregnant women.

Choice B is wrong because this is not an abnormal cardiovascular change, and the nosebleeds are not an ominous sign. They are usually harmless and do not affect the pregnancy outcome.

Choice C is wrong because there is no evidence that the woman is a victim of domestic violence.

This is a serious accusation that should not be made without proper assessment and screening.

Choice D is wrong because there is no indication that the woman has been using cocaine intranasally. Cocaine use can cause nasal damage and bleeding, but it can also have other signs and symptoms such as agitation, euphoria, dilated pupils, increased heart rate and blood pressure, and risk of miscarriage or preterm labor.