Calcium MTB

What does this test measure?

Calcium, the most abundant cation in the body, regulated by parathyroid hormone, vitamin D and calcitonin, and essential for nerve impulses, muscle contraction and blood coagulation.

Why is it ordered?

Hypercalcaemia occurs in hyperparathyroidism, vitamin D intoxication, malignancy with bone metastases, thyrotoxicosis and sarcoidosis; hypocalcaemia occurs in hypoparathyroidism, vitamin D deficiency, malnutrition and malabsorption.

Normal range

Serum: 8.6–10.3 mg/dL

Per the original BioSystems insert

Sample type

Serum, heparinized plasma or urine