A patient is being treated for preterm labor. Which beta-adrenergic medication is administered orally to decrease uterine contractions?
A) Magnesium sulfate
B) Oxytocin (Pitocin)
C) Nifedipine (Procardia)
D) Terbutaline (Brethine)
D
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Terbutaline is a beta-adrenergic agent that inhibits uterine contractions by reducing intracellular calcium levels; oral doses can be given as maintenance therapy. Magnesium sulfate is administered intravenously and not administered at home. Oxytocin induces labor. Nifedipine is a calcium channel blocker that decreases uterine contractions.
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