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

When to get tested?
As part of a routine metabolic panel, 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 done if you have kidney stones