A woman in labor at 34 weeks of gestation is hospitalized and treated with intravenous magnesium sulfate for 18 to 20 hours
When the magnesium sulfate is discontinued, which oral drug will probably be prescribed for at-home continuation of the tocolytic effect? a. Ritodrine
b. Terbutaline
c. Calcium gluconate
d. Magnesium sulfate
B
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A Ritodrine is the only drug approved by the FDA for tocolysis; however, it is
rarely used because of significant side effects.
B The woman receiving decreasing doses of magnesium sulfate is often switched
to oral terbutaline to maintain tocolysis.
C Calcium gluconate reverses magnesium sulfate toxicity. The drug should be
available for complications of magnesium sulfate therapy.
D Magnesium sulfate is usually given intravenously or intramuscularly. The patient
must be hospitalized for magnesium therapy because of the serious side effects
of this drug.
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