Free Water Deficit 💧
Estimate the volume of free water needed to correct hypernatremia using the Free Water Deficit formula.
Overview
- The Free Water Deficit formula estimates the volume of water needed to correct hypernatremia in a patient.
- Useful in guiding fluid replacement therapy, particularly in cases of dehydration and hypernatremia.
Free Water Deficit Calculator
Estimate free water deficit in hypernatraemia
Formula
Free Water Deficit = TBW × ((Na – 140) / Na)
TBW = total body water fraction × weight (kg)
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