<prompt> A one month old baby presents with frequent vomiting and failure to thrive, There are features of moderate dehydration, Blood sodium is 122 m Eqi and potassium is 6.1 in EqL The most likely diagnosis isGitelman syndromeBater syndrome21 hydroxylase deficiency11 B-hydroxylase deficiency  <response>: 21 Hydroxylase deficiency - A Salt losing form of CALL due to associated with aldosterone deficiency, these patients presents with severe vomiting, and vascular collapse. Hyponatreniia hypochloremia and hyperkalemia B A Cryptic form of CAH is asymptomatic - presents with menstrual irregularities, acne, hirsutism Female pseudo hermaphroditism in female 11 b hydroxylase deficiency - presents with hypeension, and hypokalemia Baters syndrome - - Presents during childhood, having growth retardation, normal to low BP, hypokalemia secondary to renal K wasting, metabolic alkalosis, nephrocalcinotic Gitelmans syndrome - Variant of Baters syndrome presents during adolescenceadult hood Hypokalemia, hypocalciuria, hypomagnesemia and normal prostaglandin production Metabolic alkalosis 