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HelpTest Code VITD Vitamin D, 25-Hydroxy, Total, Serum
Additional Codes
Compendium Code (Iatric): L303.2055
Performing Laboratory
St. Lukes Hospital Laboratory
Methodology
Competitive Chemiluminescent Immunoassay
Specimen Requirements
Draw blood in a serum tube. Spin down and send 1 mL of serum refrigerated.
Reference Values
Deficiency: <20 ng/mL
Insufficiency: 20-30 ng/mL
Optimum: 30-80 ng/mL
Toxic: >100 ng/mL
Day(s) Test Set Up
Monday through Friday
Test Classification and CPT Coding
CPT: 82306
LOINC: 1989-3
Additional Information
Specimen Stability:
Specimen can be refrigerated at 2° C to 8° C for up to 5 days. If not assayed within 5 days, freeze specimen in plastic vial.