Which defect results in increased pulmonary blood flow?
a. Pulmonic stenosis
b. Tricuspid atresia
c. Atrial septal defect
d. Transposition of the great arteries
C
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A Pulmonic stenosis is an obstruction to blood flowing from the ventricles.
B Tricuspid atresia results in decreased pulmonary blood flow.
C The atrial septal defect results in increased pulmonary blood flow. Blood flows
from the left atrium (higher pressure) into the right atrium (lower pressure) and
then to the lungs via the pulmonary artery.
D Transposition of the great arteries results in mixed blood flow.
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