Free Water Deficit 💧
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.
Related Topics
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)