Pseudohypoaldosteronism: a case report

A four day old female infant was admitted because of poor feeding, vomiting and jaundice. Laboratory examination showed hyperkalemia, mild hyponatremia and renal tubular acidosis type 4. Serum aldosterone and plasma renin activity were elevated but serum cortisol, 17 -hydroxy progesterone, ACTH, 24 hour urinary 17-ketosteroid, pregnanetriol, renal function and sonogram were normal and hence pseudohypoaldosteronism type 1 [pHA 1] was differentiated from congenital adrenal hyperplasia [CAH] and other metabolic disorders. These abnormalities were corrected with sodium chloride supplementation