Micronutrient, Calcium

Test Code

10196

CPT Codes
82310<br>Restricted Client Code

Preferred Specimen

1 mL serum collected in a red-top tube (no gel)

Minimum Volume

0.5 mL

Other Acceptable Specimens

Plasma collected in: sodium heparin or lithium heparin (green-top) tube

Instructions

Patients should be 18 years of age or older

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Anticoagulants other than heparin • Red-top tube (no gel)

Methodology
Spectrophotometry (SP)

Setup Schedule

Set up: Mon-Sat; Report available: 1-2 days

Reference Range

	Male (mg/dL)	Female (mg/dL)
18-19 years	8.9-10.4	8.9-10.4
20-49 years	8.6-10.3	8.6-10.2
>49 years	8.6-10.3	8.6-10.4

Reference range not available for individuals <18 years for this micronutrient test.

Clinical Significance

Serum calcium is involved in the regulation of neuromuscular and enzyme activity, bone metabolism and blood coagulation. Calcium blood levels are controlled by a complex interaction of parathyroid hormone, vitamin D, calcitonin and adrenal cortical steroids. Calcium measurements are useful in the diagnosis of parathyroid disease, some bone disorders and chronic renal disease. A low level of calcium may result in tetany.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.