Corrected calcium calculator

Corrected Calcium

Corrected Calcium for Hypoalbuminemia

Parameter	Value
Serum Calcium (mg/dL)
Serum Albumin (g/dL)
Corrected Calcium	mg/dL

Interpretation

8.5–10.5	Normal corrected calcium range.
<8.5	Hypocalcemia — Consider IV calcium if symptomatic.
>10.5	Hypercalcemia — Investigate underlying cause; consider IV fluids.

References

Formula: Corrected Ca = Measured Ca + 0.8 × (4.0 – Albumin) Payne RB, et al. Interpretation of serum calcium in patients with abnormal serum proteins. BMJ. 1973;4(5893):643-646. PMID 4758544.