Nephrology · Internal Medicine
Total Body Potassium Deficit (Hypokalemia) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Target serum potassium for repletion planning; 4.0 mmol/L is a common adult target.
Result
Complete all required inputs to calculate the score.
Formula inputs
- Body weight (kg)Accepted range: 10 to 250
- Measured serum potassium (mmol/L)Accepted range: 1.5 to 5
- Target serum potassium (mmol/L)Accepted range: 3 to 5
Primary source
Sterns RH et al. Internal potassium balance and the control of the plasma potassium concentration. Kidney Int. DOI: 10.1038/ki.2014.299. PMID: 25125606. Scope: approximate total body potassium deficit (mEq) = 0.4 × body weight (kg) × (target serum potassium − measured serum potassium) in mmol/L for hypokalemia repletion planning. (2014)
View source