Test Code VITD Vitamin D, 25-Hydroxy, Serum
Additional Codes
EPIC: LAB535
Methodology
Enzyme Immunoassay (EIA)
Recommended test for assessing Vitamin-D deficiency and monitoring therapy.
Performing Laboratory
St. Joseph Hospital
Specimen Requirements
Serum. Collect blood in a light orange top tube (SST). Centrifuge and send minimum 0.5 mL of serum refrigerated.
Plasma is not acceptable for this assay.
Reference Values
Deficient <20 ng/mL
Insufficient 20-30 ng/mL
Sufficient 30-100 ng/mL
Recommendation: Vitamin D levels should be rechecked 3 months after the initiation of therapy.
Day(s) Test Set Up
Sunday - Saturday
Test Classification and CPT Coding
82306