Multiple Choice
A congenital defect characterized by an opening between the pulmonary artery and the aorta at birth due to a failure of the fetal vessel to close is known as:
A) coarctation of the aorta.
B) patent ductus arteriosus.
C) atrial septal defect.
D) tetralogy of Fallot.
Correct Answer:

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Correct Answer:
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