Hypochloremia, hypokalemia and alkalosis are seen in: (A) Hirschsprung's disease, (B) Congenital hyperophic pyloric stenosis, (C) Esophageal atresia, (D) Jejunal atresia
Answer is B. Biochemical abnormality in congenital hyperophic pyloric stenosis is a regular feature of AIIMS and AI examinations it has been repeated several times. The biochemical abnormalities seen are: Hypokalemia Hypochloremia Alkalosis and Paradoxical aciduria Ref : Schwaz 9/e p59