A 36-week primigravida patient has been admitted to the unit with a blood pressure of 200/120 mm Hg, severe headache, and edema. Which medication does the nurse anticipate that the health care provider will order?
a. Nifedipine (Procardia)
b. Furosemide (Lasix)
c. Magnesium sulfate
d. Terbutaline (Brethine)
ANS: C
Magnesium sulfate depresses the central nervous system and blocks peripheral nerve transmission, which produces anticonvulsant effects and smooth muscle relaxation. In cases of preeclampsia or eclampsia, magnesium sulfate is used to control seizure activity. Hypertension, headache, and edema are signs of preeclampsia in a pregnant woman. Calcium channel blockers, such as nifedipine, are sometimes given as tocolytic agents. Furosemide is given for diuresis; it may be used in the treatment of hypertension, but not eclampsia. Terbutaline is given as a tocolytic agent.
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