<prompt> Most common cardiac abnormality in Noonan syndrome is:-Ventricular septal defectAtrial septal defectPulmonary stenosisTetralogy of fallot  <response>: - Cardiac anomalies associated with Noonan syndrome - Supravalvular pulmonary stenosis , HOCM, ASD IMPOANT SYNDROMES ASSOCIATED CARDIAC ANOMALIES: - Downs syndrome - Endocardial cushion defects - Turner syndrome - Bicuspid aoic valve coarctation of aoa - Congenital Rubella Syndrome - PDA OTHER OPTIONS - RELATED ONELINERS: VSD: - MC congenital hea disease in children - MC congenital acyanotic hea disease in children - MC congenital hea diseases affected by infective endocarditis in children ASD: - Congenital hea disease least commonly affected by Infective endocarditis TOF: - MC congenital cyanotic hea disease in children 