A woman in preterm labor at 30 weeks of gestation receives two 12 mg doses of betamethasone intramuscularly. The purpose of this pharmacologic treatment is to
a. Stimulate fetal surfactant production.
b. Reduce maternal and fetal tachycardia associated with ritodrine administration.
c. Suppress uterine contractions.
d. Maintain adequate maternal respiratory effort and ventilation during magnesium
sulfate therapy.
A
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A Antenatal glucocorticoids given as intramuscular injections to the mother
accelerate fetal lung maturity.
B Inderal would be given to reduce the effects of ritodrine administration.
C Betamethasone has no effect on uterine contractions.
D Calcium gluconate would be given to reverse the respiratory depressive effects
of magnesium sulfate therapy.
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