West Nile Virus (WNV) Antibody, Cerebrospinal Fluid

CPT: 86788; 86789
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Test Details

Test Includes

West Nile virus, IgG; West Nile virus, IgM

Use

This test is intended to be used as an aid to the diagnosis of West Nile virus encephalitis.

Methodology

Enzyme immunoassay (EIA)

Reference Interval

Negative

Specimen Requirements

Specimen

Cerebrospinal fluid (CSF)

Volume

0.5 mL

Minimum Volume

0.2 mL

Container

Sterile container

Collection

Do not centrifuge cerebrospinal fluid.

Storage Instructions

Room temperature

Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Causes for Rejection

Gross contamination; severe hemolysis; quantity not sufficient for analysis

Clinical Information

References

Tardei G, Ruta S, Chitu V, et al. Evaluation of immunoglobulin M (IgM) and IgG enzyme immunoassays in serologic diagnosis of West Nile virus infection. J Clin Microbiol. 2000; 38(6):2232-2239.10834982

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
138966 West Nile Virus Antibody, CSF 139039 West Nile Virus, IgG 30178-8
138966 West Nile Virus Antibody, CSF 139043 West Nile Virus, IgM 29569-1

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