Calculates the corrected calcium using serum total calcium (mg/dl) and total albumin (g/dl) results.
Formula:
Corrected Calcium (mg/dl) = Total Calcium (mg/dl) + 0.8 x (4 g/dl – serum albumin (mg/dl))
Principle:
The total calcium in the body is dependent on the level of serum albumin, which is the binding protein of calcium.
The adjusted or corrected calcium refers to the part of calcium which is ionized, the part that has a biological effect.
Usually, corrected calcium is calculated whenever albumin levels are not in the normal range, thus allowing an estimate as if albumin value were normal.
