Test Details

Mnemonic

VAAF

Ordering Code

3423740

CPT-4 Code(s)

80165

Specimen Information

Patient Preparation

Collect trough sample (1 hour before next dose). Avoid contact of samples with plasticizers, fatty acids, varnishes, paint fumes.

Collect

Red top

Specimen Preparation

Centrifuge, separate serum from cells and send 3.0 mL serum in a screw capped plastic vial.

Alternate Specimen

Serum: Dark blue trace element no additive
Plasma: Lavender EDTA, dark blue EDTA

Minimum Volume

1.0 mL

Transport Temperature

Refrigerated

Rejection Criteria

Serum separator tube (SST)

Stability

Room temperature: 48 hours
Refrigerated: 7 days
Frozen: 60 days

Methodology

Immunoassay
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Reference Range

4.8 - 17.3 mg/L
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Performing Laboratory

Quest
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New York DOH Approval Status

Yes
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