A 36-week pregnant patient presents with hypertension and 3+ protein in her urinalysis. What is the best treatment option for her preeclampsia?

In the context of managing preeclampsia, magnesium sulfate is recognized as the best treatment option among the choices provided. Preeclampsia is a pregnancy-related condition characterized by hypertension and proteinuria, and it can lead to serious complications for both the mother and the fetus. Magnesium sulfate is primarily used for two key reasons: it acts as an anticonvulsant to prevent the progression to eclampsia, which is characterized by seizures, and it also has a stabilizing effect on blood pressure.

When a patient presents with severe preeclampsia, the administration of magnesium sulfate is crucial because it significantly reduces the risk of seizures, which can occur during the progression of the disorder. Additionally, its use helps manage the mother's condition and improves fetal outcomes by enabling safer management of high blood pressure and preventing complications.

The other options do not provide the same level of targeted treatment for preeclampsia. Nifedipine is a calcium channel blocker used for hypertension, but it may not effectively prevent seizures. Diazepam is a sedative that is not indicated for use in pregnant patients, especially under these circumstances, as it does not address the underlying issues of preeclampsia. Captopril, an ACE inhibitor