Test Details

Mnemonic

VGKCA

Ordering Code

3621900

CPT-4 Code(s)

83519

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells within 1 hour of collection and send 4.0 mL serum in a screw capped plastic vial.

Alternate Specimen

Serum: Red top

Minimum Volume

0.5 mL

Transport Temperature

Refrigerated

Rejection Criteria

Grossly lipemic or icteric specimens, plasma

Stability

Room temperature: 72 hours
Refrigerated: 14 days
Frozen: 1 month

Methodology

Quantitative Radioimmunoassay
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Reference Range

Negative: 31 pmol/L or less
Indeterminate: 32 - 87 pmol/L
Positive: 88 pmol/L or greater
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Performing Laboratory

ARUP
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New York DOH Approval Status

Yes
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