Corrected Calcium for Ca 6.0 mg/dL and Albumin 2.0 g/dL
With measured calcium of 6.0 mg/dL and albumin of 2.0 g/dL, the corrected calcium is approximately 7.2 mg/dL, confirming hypocalcemia.
How to use this tool
- Enter the measured total calcium in mg/dL.
- Enter the serum albumin in g/dL.
- Read the albumin-corrected calcium value.
- Compare it against the reference range note shown.
Calculate corrected calcium for a reading of 6.0 mg/dL with low albumin of 2.0 g/dL to assess true hypocalcemia.
Frequently asked questions
- When should calcium be corrected for albumin?
- The correction is most useful when albumin is low, because low albumin lowers total calcium without changing the active ionised fraction. At normal albumin the correction is essentially zero.
- What units does this calculator use?
- It uses US conventional units: calcium in mg/dL and albumin in g/dL, with an assumed normal albumin of 4.0 g/dL.
- Is corrected calcium as reliable as ionised calcium?
- No. Corrected calcium is an estimate that can be inaccurate in critical illness, kidney disease, or abnormal pH. A measured ionised calcium is the more reliable test in those settings.