Calcium

Test Code
CA


CPT Codes
82310

Preferred Specimen
1.0 mL serum


Transport Container
Serum separator tube/Gold top tube.


Transport Temperature
Refrigerate


Methodology
Colorimetric

Reference Range
0-10 days7.6-10.4 mg/dL
10 days-2 yrs9.0-11.0 mg/dL
2-12 yrs8.8-10.8 mg/dL
12-60 yrs8.4-10.2 mg/dL
>60 yrs8.6-10.2 mg/dL


Clinical Significance
Calcium is the most abundant mineral element in the body with about 99 % in the bones primarily as hydroxyapatite.  The remaining calcium is distributed between various tissues and the extracellular fluids where it performs a vital role for many life sustaining processes.  Among  the extra skeletal functions of calcium are involvement in blood coagulation, neuromuscular conduction, excitability of skeletal and cradiac muscles, enzyme activation, and the preservation of cell membrane integrity and permeability.




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.