Lab

Urine Sodium

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Urine Sodium, Urine Na

  • See Also
  1. Sodium and Water Homeostasis
  2. Hyponatremia
  3. Hypernatremia
  4. Serum Sodium
  5. Total Body Sodium Deficit
    1. Includes Total Body Water and Free Water Deficit Calculations
  6. Serum Osmolality
  7. Osmolal Gap
  8. Fractional Excretion of Sodium (FENa)
  • Interpretation
  • Normal
  1. Urine Sodium: 40-220 mEq/24 hr
  • Interpretation
  • Increased
  1. Diuretics
  2. High Sodium Diet
  3. Acute Tubular Necrosis (ATN)
  4. Salt-losing nephritis
  5. Addison's Disease
  6. Hypothyroidism
  7. SIADH
  8. CHF
  9. Liver failure
  • References
  1. Braun (2015) Am Fam Physician 91(5): 299-307 [PubMed]