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A 22-Year-Old Pregnant Woman Presents to Her OB/GYN for a Prenatal

Question 6

Multiple Choice

A 22-year-old pregnant woman presents to her OB/GYN for a prenatal checkup.The fetal heartbeat sounds irregular, and a fetal echocardiogram reveals an atrioventricular canal (AVC) defect.This defect is the result of:


A) failure of the ductus arteriosus to close.
B) incomplete fusion of the endocardial cushions.
C) a patent foramen ovale.
D) a right-to-left shunt.

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