<prompt> 5 HIAA in urine is due to:PheochromocytomaCarcinoid syndromePhenyl ketonuriaAlkaptonuria  <response>: Ans. B. Carcinoid syndromeIn Pheochromocytoma VMA is excreted in excess in urine.In Carcinoid syndrome 5 HIAA is excreted in excess in urine.In PKU Phenyl Ketones like Phenyl acetate and Phenyl Pyruvate is excreted in urine.In Alkaptonuria Homogentisate is excreted in urine. 