What structural defects constitute tetralogy of Fallot?
a. Pulmonary stenosis, ventricular septal defect, overriding aorta, right ventricular hypertrophy
b. Aortic stenosis, ventricular septal defect, overriding aorta, right ventricular hypertrophy
c. Aortic stenosis, ventricular septal defect, overriding aorta, left ventricular hypertrophy
d. Pulmonary stenosis, ventricular septal defect, aortic hypertrophy, left ventricular hypertrophy
ANS: A
Tetralogy of Fallot has these four characteristics: pulmonary stenosis, ventricular septal defect, overriding aorta, and right ventricular hypertrophy.
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