Hypocalcaemia
Last updated: Tuesday, 14, December, 2010
| Causes | Appropriate Tests |
|---|---|
Calcium (total); albumin, calcium (corrected), phosphate. Calcium (ionised), if indicated. Hypocalcaemia is only significant clinically if ionised calcium is reduced. | |
| Low total, corrected, and ionised calcium | |
Artefactual | Collection in EDTA, citrate or oxalate anticoagulant will result in a spurious reduction in calcium. See Table 1. |
Renal failure - chronic | |
Vitamin D deficiency | See under Osteomalacia. |
| See under Myoglobinuria. | |
| Low total calcium, normal corrected and ionised calcium | |
| Normal total and corrected calcium, low ionised calcium | |
Hyperventilation |