West Nile Virus Antibodies (IgG, IgM), CSF

Test Code
36597


CPT Codes
86788, 86789

Preferred Specimen
2 mL CSF


Minimum Volume
0.7 mL


Transport Container
Plastic screw-cap vial


Transport Temperature
Refrigerated (cold packs)


Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly icteric


Methodology
Enzyme Immunoassay (EIA)

Setup Schedule
Mon, Wed, Fri


Reference Range
West Nile Virus Ab (IgG), CSF <1.30
West Nile Virus Ab (IgM), CSF <0.90

Interpretive Criteria
West Nile Virus Antibody (IgG), CSF
<1.30 Antibody not detected
1.30-1.49 Equivocal
>1.49 Antibody detected
West Nile Virus Antibody (IgM), CSF
<0.90 Antibody not detected
0.90-1.10 Equivocal
>1.10 Antibody detected


Performing Laboratory
Quest Diagnostics Nichols Institute-Chantilly VA
14225 Newbrook Drive
Chantilly, VA 20151-2228




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.