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HypochloremiaAka: Low Serum Chloride

Pathophysiology
1. Serum Chloride 1 meq/L drop: 1% all body Chloride fall
Causes
1. Metabolic Alkalosis
  1. Vomiting
  2. Diarrhea
  3. Diuretics
  4. Gastric suction (NG Suction)
  5. Respiratory losses
  6. Steroid medications
2. Hyponatremia
  1. Adrenal Insufficiency (Addison's Disease)
  2. Edematous states
    1. Congestive Heart Failure
  3. Salt-losing nephritis
  4. SIADH
  5. Renal Failure
  6. Pseudohyponatremia
  7. Excessive sweating
  8. Excessive IV D5W
  9. Thiazide Diuretics
  10. Burns

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This page was written by Scott Moses, MD, and was last revised 1/27/2008. Please send comments and questions to the editor. Contact information may be found on the page About the Family Practice Notebook. These pages are best viewed with Microsoft Internet Explorer 5.0.