Tetralogy of Fallot's present with one of the following?

Ans. is 'a' i.e., Central cyanosis with clubbing Clinical features of TOF : o Dysnea on exeion and exercise intolerance Most common. o Cyanosis usually presents after neonatal period o Hypoxemic or cyanotic spells (Tet spells) o Commonest congenital lesion with which squatting is used o Clubbing o Ausculatory findings : S1 --> Normal S2 --> Single predominantly Aoic Murmur --> Ejection systolic o TOF patients are RARELY CYANOTIC AT BIH* Chest x-ray Normal hea size Oligaemic lung fields Right aoic arch present in 25% case o ECG --> Right axis detion, Inveed Twave, `P' pulmonale About option 'b' o Pulmonary stenosis causes pressure oveload --> Concentric right ventricular hyperophy without cardiac enlargement.