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Preterm Labor

The term small-for-gestational age is generally used to designate newborns whose birthweight is less than what percentile?

a. 3%

b. 5%

c. 10%

d. 15%

The neonatal mortality rate is expected to be lowest for newborns born at which of the following gestational ages?

a. 36 weeks 6 days

b. 37 weeks 4 days

c. 39 weeks 6 days

d. 41 weeks 2 days

Late-preterm births, defined as those between 34 and 36 weeks’ gestation, compose what percentage of all preterm births?

a. 35%

b. 50%

c. 70%

d. 85%

Which of the following etiologies is largely responsible for the increase in preterm birth rates in the United States during the past 20 years?

a. Triplet pregnancies

b. Spontaneous preterm labor

c. Preterm rupture of fetal membranes

d. Indicated (iatrogenic) preterm birth

After achieving a birthweight of at least 1000 grams, neonatal survival rates reach 95 percent at approximately what gestational age with regard to newborn sex?

a. 28 weeks for both males and females

b. 30 weeks for both males and females

c. 28 weeks for females and 30 weeks for males

d. 30 weeks for females and 28 weeks for males

Cesarean delivery for neonates born at the threshold of viability has been demonstrated to protect against which of the following adverse newborn outcomes?

a. Seizures

b. Intraventricular hemorrhage

c. Respiratory distress syndrome

d. None of the ...

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