Dehydration Fluid Deficit Calculator
Calculate fluid deficit in dehydration. Deficit = (Current Na - Normal Na) × TBW / Normal Na
Formula
Deficit = (Na_current - Na_normal) × TBW / Na_normal
155 mEq/L, 70 kg
Inputs
- Body Weight (kg): 70
- Current Sodium (mEq/L): 155
Deficit ≈ 4.6 L
Frequently asked questions
What is TBW?
Total body water; approximately 60% of body weight