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Adjusted Calcium

Corrected Calcium Albumin-Adjusted Calcium
Calculated from serum Ca and Albumin mmol/L

About this test

Corrects total calcium for albumin concentration. Formula: Adjusted Ca = Total Ca + 0.02 × (40 − Albumin).

Reference Ranges

Sex Age Range Notes
All ≥ 18 yrs 2.15 – 2.55 Same reference range as total calcium; more clinically relevant

Clinical Interpretation

Low / Decreased
Same interpretation as total calcium after adjustment.
High / Increased
Same interpretation as total calcium after adjustment.

Related Tests

Albumin Total Calcium Phosphate
Specimen
Calculated from serum Ca and Albumin
Reporting Unit
mmol/L
Category
🧪 Clinical Biochemistry

⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.