Test Details
Mnemonic
WVFAP
Ordering Code
3619000
CPT-4 Code(s)
85246
Specimen Information
Patient Preparation
Follow coagulation test collection methods in appendices.
Collect
Light blue sodium citrate
Specimen Preparation
Send 1.5 mL plasma in a screw capped plastic vial. CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Minimum Volume
1.0 mL
Transport Temperature
Critical frozen
Rejection Criteria
Serum, non-frozen or hemolyzed specimens, EDTA plasma
Stability
Room temperature: 4 hours
Refrigerated: Unacceptable
Frozen: 3 months
Refrigerated: Unacceptable
Frozen: 3 months
Methodology
Microlatex Particle-Mediated Immunoassay
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%
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%
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes