<prompt> Tetralogy of Fallots present with one of the followingCenral cyanosis with clubbingCardiomegalyLeft ventricular hypertrophyNormal ECG and Chest x-ray  <response>: Clinical features of TOF :Dyspnea on exertion and exercise intolerance Most common.Cyanosis usually presents after the neonatal periodHypoxemic or cyanotic spells Tet spellsCommonest congenital lesion with which squatting is usedClubbingAuscultatory findings :S1 NormalS2 Single predominantly AorticMurmur Ejection systolicTOF patients are RARELY CYANOTIC AT BIRTHChest x-rayNormal heart sizeOligaemic lung fieldsRight aortic arch present in 25 caseBOG Right axis deviation, Inverted Twave, P pulmonaleAbout option bPulmonary stenosis causes pressure overload Concentric right ventricular hypertrophy without cardiac enlargement. 