Topics
A to Z
Data &
 Statistics
Forms &
Publications
News &
Advisories
Licensing &
Certification
Rules &
Regulations
Public Health
Directory
Print this Article   Bookmark and Share

West Nile Virus Antibody Panel, IgG and IgM

Updated

8/15/2013

Other Names West Nile Fever; Arboviruses
How to Order
Check the West Nile Virus box on the  Virology/Immunology Request (Form 42)
Availability
All clients
Methodology
Enzyme Immunoassay
Performed
Monday through Thursday
Time to Reporting
Within 3 working days from receipt of specimen.
CPT Code
86788, 86789 & 86653


Specimen Collection Details

Collection
One 7 ml red top tube or serum separator tube (SST). Plasma or cerebrospinal fluid (CSF) are also acceptable specimen types.
Optimal Volume
Blood: 5-7 mL; Serum or Plasma 1-2 mL; CSF 1-2 mL
Minimum Volume
Blood: 3 mL; Serum or Plasma 1 mL; CSF 1 mL
Handling
After blood clots, keep specimen refrigerated until transport. DO NOT FREEZE. If possible remove the serum from the clot as soon as possible. Keep CSF refrigerated. Sample must be tested within 7 days of collection.
Transport
Refrigerated at 2-8° C.
Rejection Criteria
CSF specimens with volumes less than 1 mL; contaminated specimens; specimens received without proper patient identifiers on specimen tube and/or request form; and specimens received with requests without submitter information.
Comments
This test is intended to be used as a semi-quantitative means of detecting West Nile virus-specific IgG and IgM in serum and CSF samples where there is a clinical suspicion of West Nile virus infection. This test should not be used solely for quantitative purposes and the results should only be used in conjunction with clinical history and other data. Because other members of the Flaviviridae family show extensive cross-reactivity with West Nile virus, serologic testing for St. Louis encephalitis is also performed.