For a brief introduction and guide to abbreviations, see Laboratory Tests: General Remarks.
Calcium, ionized [P/VB/CB]
Reference range, target level, or decision threshold
Calcium, total: 2.25-2.75 mmol/L (9-11 mg/dL)
<5 mmol/24 h (200 mg/24 h)
Calcium, ionized: 1.0-1.3 mmol/L (4-5.2 mg/dL)
[mmol/L] × 4 = [mg/dL]
Interpretation of results
↑ Causes of hypercalcemia: see Hypercalcemia
↓ Causes of hypocalcemia: see Hypocalcemia