Electrolytes

Free water deficit

Water deficit in hypernatremia. Target Na 140 unless otherwise specified.

hypernatremiaNa

Required inputs

  • Serum Na (mEq/L)
  • Target Na (mEq/L)
  • Weight
  • Sex
  • Elderly / cachectic

Equation or source

Sterns RH. NEJM 2015;372:55.

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