<prompt> In which of the following differential cyanosis found ?VSD with reversal of shuntPDA with reversal of shuntASD with reversal of shuntTetralogy of Fallot  <response>: In PDA the shunt is between pulmonary aery and aoa distal to subclan aery resulting in differential cyanosis. Ref : Ghai essential of pediatrics, eighth edition, p.no:417 