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Preterm Labor

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

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a. 3%

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b. 5%

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c. 10%

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d. 15%

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

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a. 36 weeks 6 days

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b. 37 weeks 4 days

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c. 39 weeks 6 days

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d. 41 weeks 2 days

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

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a. 35%

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b. 50%

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c. 70%

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d. 85%

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

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a. Triplet pregnancies

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b. Spontaneous preterm labor

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c. Preterm rupture of fetal membranes

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d. Indicated (iatrogenic) preterm birth

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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?

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a. 28 weeks for both males and females

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b. 30 weeks for both males and females

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c. 28 weeks for females and 30 weeks for males

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d. 30 weeks for females and 28 weeks for males

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

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a. Seizures

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b. Intraventricular hemorrhage

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c. Respiratory distress syndrome

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d. None of the ...

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