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Vitamin D, 25-Hydroxy
Test CodeLAB535
Alias/See Also
LAB535, Vitamin D, 82306
CPT Codes
82306
Preferred Specimen
4.5 ml (4.5 ml minimum) SST (gold) or plasma (green)
Minimum Volume
1 mL serum or plasma at 2-8°C. (Min: 0.3 mL)
Transport Temperature
Room temp
Specimen Stability
After separation from cells: Room Temperature: 72 hours, Refrigerated: 12 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed or lipemic specimens.
Methodology
Chemiluminescent Microparticle Immunoassay
Setup Schedule
Mon- Sun
Reference Range
Deficiency < 20 ng/mL, Insufficiency 21-29 ng/mL, Sufficiency > 30 ng/mL
Clinical Significance
Vitamin D is a lipid-soluble steroid hormone that is produced in the skin through the action of sunlight or is obtained
from dietary sources.1
The role of vitamin D in maintaining homeostasis of calcium and phosphorus is well established
from dietary sources.1
The role of vitamin D in maintaining homeostasis of calcium and phosphorus is well established
Performing Laboratory
Piedmont Athens Regional
