<prompt> Most common congenital cyanotic heart disease in child-TOFPDATATAPVC  <response>: Ans. is a i.e., TOF Tetralogy of falloto Cyanotic heart disease MC.o Defect in infundibular septum leads to :Pulmonary stenosis.VSD Not ASDDextroposition and overriding of aorta.Right ventricular hypertrophy NOT LVH.o Pink TOF Acyanotic TOF when PS is mild to moderate balanced shunt tnt across the VSD, pt not have cyanosis. 