Test Details

Mnemonic

VD25H

Ordering Code

3600336

CPT-4 Code(s)

82306

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells and send 1.0 mL serum in a screw capped plastic vial.

Alternate Specimen

Serum: Red top

Minimum Volume

0.3 mL

Transport Temperature

Refrigerated

Rejection Criteria

EDTA plasma, tissue or urine. Grossly hemolyzed, lipemic.

Stability

Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 6 months

Methodology

Quantitative Chemiluminescent Immunoassay
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Reference Range

0 - 17 years
Deficiency: <20 ng/mL
Optimum Level: >=to 20 ng/mL*
*(Wagner CL et al. Pediatrics 2008; 122: 1142-52.)
18 years and older
Deficiency: <20 ng/mL
Insufficiency: 20 - 29 ng/mL
Optimum Level: 30 - 80 ng/mL
Possible Toxicity: >150 ng/mL
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Performing Laboratory

ARUP
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New York DOH Approval Status

Yes
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