Tetralogy of Fallot typically presents in infancy with cyanosis and a harsh murmur best heard at which location?

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Multiple Choice

Tetralogy of Fallot typically presents in infancy with cyanosis and a harsh murmur best heard at which location?

Tetralogy of Fallot presents early with cyanosis from a right-to-left shunt across the VSD, driven by obstruction of the right ventricular outflow tract. The murmur you hear is due to that RVOT obstruction and is a harsh systolic ejection murmur best heard along the left upper sternal border. The combination of infant cyanosis with spells (tet spells) and a harsh murmur at the left sternal border is classic for TOF. Other findings align with different lesions: a fixed split S2 with an ejection murmur points to ASD, a continuous machinery murmur to PDA, and a diastolic murmur at the apex suggests mitral valve pathology or related left-sided issues.

Tetralogy of Fallot presents early with cyanosis from a right-to-left shunt across the VSD, driven by obstruction of the right ventricular outflow tract. The murmur you hear is due to that RVOT obstruction and is a harsh systolic ejection murmur best heard along the left upper sternal border. The combination of infant cyanosis with spells (tet spells) and a harsh murmur at the left sternal border is classic for TOF. Other findings align with different lesions: a fixed split S2 with an ejection murmur points to ASD, a continuous machinery murmur to PDA, and a diastolic murmur at the apex suggests mitral valve pathology or related left-sided issues.

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