Which of the following is a component of Tetralogy of Fallot?

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Multiple Choice

Which of the following is a component of Tetralogy of Fallot?

Tetralogy of Fallot is defined by four findings, and the pulmonary outflow obstruction is a central part of the picture because it creates the right-to-left shunt that underlies the cyanosis. The combination includes a ventricular septal defect, an overriding aorta, pulmonary stenosis (often at the valve or infundibulum), and right ventricular hypertrophy from the obstructed RV outflow tract. Among the options, pulmonary valve stenosis fits as one of these components, while mitral valve prolapse, aortic dissection, and an atrial septal defect are not part of Tetralogy of Fallot. Clinically, you may hear a harsh systolic murmur from the pulmonary stenosis and see a boot-shaped heart on imaging due to RV hypertrophy. Surgical repair aims to relieve the RVOT obstruction and close the VSD.

Tetralogy of Fallot is defined by four findings, and the pulmonary outflow obstruction is a central part of the picture because it creates the right-to-left shunt that underlies the cyanosis. The combination includes a ventricular septal defect, an overriding aorta, pulmonary stenosis (often at the valve or infundibulum), and right ventricular hypertrophy from the obstructed RV outflow tract. Among the options, pulmonary valve stenosis fits as one of these components, while mitral valve prolapse, aortic dissection, and an atrial septal defect are not part of Tetralogy of Fallot. Clinically, you may hear a harsh systolic murmur from the pulmonary stenosis and see a boot-shaped heart on imaging due to RV hypertrophy. Surgical repair aims to relieve the RVOT obstruction and close the VSD.

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