Hypokalemia - Differential Diagnosis

Poor Intake 

 - Starvation

 - Anorexia

GI Losses 

 - Vomiting / NG drainage

 - Diarrhea

 - Laxative abuse

 - Ureterosigmoidostomy

Urinary Losses 

 - Diuretics

 - Mineralocorticoid excess

 - Renal tubular acidosis (Types 1 and 2, but not type 4)

 - Salt wasting nephropathy

 - Amphotericin B

 - Polyuria

 - Hypomagnesemia

Internal Redistribution 

 - Insulin

 - Catecholamines

 - Alkalosis

 - Marked cell proliferation

 - Hypokalemic periodic paralysis



Dr. Eric Strong https://twitter.com/DrEricStrong 



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