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Postterm Pregnancy

A pregnancy is considered prolonged after how many completed weeks?

a. 39 weeks

b. 40 weeks

c. 41 weeks

d. 42 weeks

What is the most accurate way of dating a pregnancy?

a. Last menstrual period

b. 1st-trimester ultrasound

c. 2nd-trimester ultrasound

d. Last menstrual period and a 2nd-trimester ultrasound

In the United States in 2013, what percentage of pregnancies were considered postterm?

a. 3%

b. 5%

c. 8%

d. 10%

Rare fetal–placental factors associated with postterm pregnancy include which of the following?

a. Anencephaly

b. Wilms tumor

c. Adrenal hyperplasia

d. Autosomal-recessive placental sulfatase deficiency

What is a major cause of perinatal mortality associated with pregnancy duration beyond 41 weeks?

a. Birth injuries

b. Gestational hypertension

c. Hypoxic-ischemic encephalopathy

d. All of the above

Which of the following have been found to be increased in the setting of postterm pregnancies?

a. Neonatal seizures and deaths

b. Neonatal intensive care admissions

c. Cesarean delivery for fetal distress

d. All of the above

Maternal risks of postterm pregnancy include all except which of the following?

a. Preeclampsia

b. Perineal lacerations

c. Postpartum hemorrhage

d. Morbidly adherent placenta

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