Most common biochemical abnormality in congenital pyloric stenosis.
Hyperkalemic metabolic acidosis
Hypokalemic metabolic acidosis
Hyperkalemic metabolic alkalosis
Hypokalemic metabolic alkalosis
Ans. is 'd' i.e. Hypokalemic metabolic alkalosis Repeated vomiting leads to hypochloremic, hypokalemic metabolic alkalosis. The urine is alkaline initially but eventually it becomes acidic (paradoxical aciduria)
Benign Gastric Disease