<prompt> Rama, a 20 year old smoker, presents with hemoptysis and hematuria. Likely diagnosis is:Good pastures syndromeNephrotic syndromeGullian Bane syndromeIgA Nephropathy  <response>: Answer is A Good pastures syndrome Association of hematuria and hemoptysis suggests a diagnosis of Goodpastures syndrome Good pasture s syndrome is an autimmune disease charachterized by formation of Anti GBM antibodies, that attack both the pulmonary capillaries hemoptysis and the glomerulus hematuria. The classical presentation is that of a young male smoker with signs of acute glomerulonephritis hematuria, proteinuria RBC cast and hemoptysis associated with bilateral pulmonary infiltrates. 