Why get tested?
To determine if the level of calcium in your blood is at normal levels.

When to get tested?
As part of routine testing, in persons with kidney, bone, or nerve disease, or when symptoms of significantly increased or decreased calcium concentrations are present

Sample required?
A blood sample drawn from a vein in your arm; a timed urine collection may be used when blood calcium is abnormal; urine calcium may also be requested if you have kidney stones