Potassium

Hypokalemia due to Extrarenal Potassium Loss

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Hypokalemia due to Extrarenal Potassium Loss, Extrarenal Potassium Loss, Hypokalemia with Excessive Renal Losses

  • See Also
  1. Serum Potassium
  2. Hypokalemia Approach
  3. Hypokalemia due to Renal Potassium Loss
  4. Hypokalemia due to Extrarenal Potassium Loss
  5. Hypokalemia due to Transcellular Potassium Shift
  6. Familial Periodic Paralysis
  7. Potassium Replacement
  8. Dietary Potassium
  • Labs
  1. Hypokalemia with Urine Potassium < 20 meq/day
  1. Chronic Diarrhea
  2. Acute Leukemia
  3. Aminoglycosides
  4. High dose Penicillin
  5. Colonoscopy Bowel Preparation
  6. Hypomagnesemia
    1. Intracellular Magnesium (99% of body stores) is not reflected by Serum Magnesium level
    2. Consider empiric Magnesium Replacement in refractory Hypomagnesemia
  7. Constant GI loss and inadequate intake (<10-20 meq/day)
  8. Skin losses from sweating
  1. Acute Diarrhea
  2. Amphotericin
  3. Diabetic Ketoacidosis
  4. Laxative abuse
  5. Intestinal or biliary fistula
  6. Ureterostomy
  7. Toluene
  1. Gastrointestinal loss (Consider Bulimia)
    1. Vomiting
    2. Nasogastric suction
  2. Discontinued Diuretics
  • References
  1. Kim (2023) Am Fam Physician 107(1): 59-70 [PubMed]