Electrolytes
Adrogué-Madias sodium change
Predicted change in serum Na from 1 L of infusate. Use to plan correction rate.
Required inputs
- Serum Na (mEq/L)
- Infusate Na (mEq/L)
- Infusate K (mEq/L)
- Weight
- Sex
- Elderly / cachectic
- Planned infusate volume (L)
- Over how many hours?
Equation or source
Adrogué HJ, Madias NE. NEJM 2000;342:1581. ESE 2023 hyponatremia guidance.