Sodium Change Calculator

Free calculate sodium change. This is an educational tool only - always consult a healthcare provider.

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About Sodium Change

  • • Predicts change in serum sodium
  • • Formula: ΔNa = (Fluid Na - Current Na) / (TBW + Fluid Volume)
  • • TBW ≈ 0.6 × body weight (men) or 0.5 × body weight (women)
  • • Used to guide fluid therapy
  • • Monitor closely during correction