CALCIUM

Message
CHEMISTRY


Test Code
CA


Alias/See Also
CA


Includes
included in a P4 panel, Chem 7


Preferred Specimen
PLASMA


Minimum Volume
2 MLS


Other Acceptable Specimens
GOLD TOP SST TUBE


Instructions
DRAW 1 LT GREEN LITHIUM HEPARIN TUBE, SPIN AND SEPARATE PLASMA


Transport Container
ORIGINAL TUBE


Transport Temperature
REFRIGERATE


Specimen Stability
Room temperature: 7 days
Refrigerated (2-8°C): 3 weeks
Frozen (-20°C or colder): 8 months


Methodology
ARSENAZO

Setup Schedule
DAILY


Report Available
DAILY


Reference Range
8.5-10.5 mg/dL


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.


Performing Laboratory
WHITE RIVER JUNCTION VT VA- CHEMISTRY 802-295-9363 EXT: 5518, 5519



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.