Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm Urine chloride < 20 mmol/l - Chloride responsive (Chloride depletion): • Vomiting • NG suction • Chloridorrhea • Cystic fibrosis • Remote diuretic use Urine chloride > 20 mmol/l - Chloride resistant: • Current diuretic use, Severe K depletion, Exogenous alkali, Mg deficiency • Increased BP = Hyperaldosteronism • Decreased BP = Bartter's Syndrome, Gitelman's Syndrome Dr. John Booth @ThePeanutKidney #Metabolic #Alkalosis #Causes #Differential #Diagnosis #Algorithm
