Calculators
Corrected calcium
Total calcium adjusted for albumin: measured Ca + 0.02 × (40 − albumin), SI units.
Result
Fill the inputs to compute.
- Interpretation
- Corrects total calcium for the protein-bound fraction lost with hypoalbuminemia.
- Limitations
- Performs poorly in critical illness and acid-base disturbance; measure ionized calcium when precision matters.
- Reference
- Payne RB et al. BMJ 1973;4:643-6.