<prompt> Tetralogy of Fallots present with one of the following?Cenral cyanosis with clubbingCardiomegalyLeft ventricular hyperophyNormal ECG and Chest x-ray  <response>: 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. 