Causes of Hypokalemia - Differential Diagnosis Algorithm Decreased intake (rare cause in isolation) GI loss - Urine loss <20mmol/d • Diarrhea • Vomiting • NG suction • Laxatives Transcellular shift • Insulin • Beta-2 agonists • alkalemia • Refeeding syndrome • Rapid hematopoiesis • Hypothermia • Thyrotoxic periodic paralysis/familial hypokalemic periodic paralysis EABV contracted • Loop diuretics / Bartter's syndrome • Thiazide diuretics / Gittelman's syndrome • Magnesium depletion High renin, High aldosterone • Renal artery stenosis Low renin, High aldosterone • Hyperaldosteronism Low renin, Low aldosterone • Licorice intake • Liddle's syndrome #Hypokalemia #Nephrology #Differential #Diagnosis #Algorithm #Causes
