Test Details

Mnemonic

WVFAP

Ordering Code

3619000

CPT-4 Code(s)

85246

Specimen Information

Patient Preparation

Follow coagulation test collection methods in appendices.
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Collect

Light blue sodium citrate
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Specimen Preparation

Send 1.5 mL plasma frozen in a screw-capped plastic vial. CRITICAL FROZEN.
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Minimum Volume

1.0 mL
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Transport Temperature

Critical frozen
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Rejection Criteria

Serum, non-frozen or hemolyzed specimens, EDTA plasma
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Stability

Room temperature: 4 hours
Refrigerated: Unacceptable
Frozen: 3 months
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Methodology

Microlatex Particle-Mediated Immunoassay
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Reference Range

0 - 6 years: 52 - 214%
7 - 9 years: 62 - 180%
10 - 11 years: 63 - 189%
12 - 13 years: 60 - 189%
14 - 15 years: 57 - 199%
16 - 17 years: 50 - 205%
18 years and older: 52 - 214%
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Performing Laboratory

ARUP Reference Laboratory
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New York DOH Approval Status

Yes
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