Acid-Base Balance-Electrolyte Quiz - Case 45

levels), hypocalcemia and hypokalemia accompanied by increased urine potassium secretion. Even though vomiting and Gitelman syndrome are associated with metabolic alkalosis and kaliuria-induced hypokalemia, hypocalcemia is not observed in these conditions. Diarrheal syndrome is followed by metabolic acidosis, while the above acid-base and electrolyte abnormalities are not compatible with the SIADH. On the other hand, hypomagnesemia is commonly associated with kaliuria-induced hypokalemia and hypocalcemia due to decreased PTH secretion and resistance to its action. Metabolic alkalosis is possible due to the coexistent hypokalemia, which is a potent stimulus to H + secretion and HCO 3! reabsorption.