Not recommended as a stand-alone test. Refer to Arbovirus Antibodies, IgG and IgM, CSF (2001597).
Semi-Quantitative Indirect Fluorescent Antibody/Semi-Quantitative Enzyme-Linked Immunosorbent Assay
New York DOH Approval Status
Transfer 4 mL CSF to an ARUP Standard Transport Tube. (Min: 1.5 mL)
Plasma. Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens.
Ambient: 8 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Effective February 19, 2013
|St. Louis Encephalitis Antibody, IgG by IFA, CSF||Less than 1:1|
|California Encephalitis Antibody, IgG by IFA, CSF||Less than 1:1|
|Eastern Equine Encephalitis Antibody, IgG by IFA, CSF||Less than 1:1|
|Western Equine Encephalitis Antibody, IgG by IFA, CSF||Less than 1:1|
|West Nile Virus Antibody, IgG by ELISA, CSF||1.29 IV or less: Negative - No significant level of West Nile virus IgG antibody detected.
1.30-1.49 IV: Equivocal - Questionable presence of West Nile virus IgG antibody detected. Repeat testing in 10-14 days may be helpful.
1.50 IV or greater: Positive - Presence of IgG antibody to West Nile virus detected, suggestive of current or past infection.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Laboratory Developed Test (LDT)
86651; 86652; 86653; 86654; 86789
|Component Test Code*||Component Chart Name||LOINC|
|0050238||West Nile Virus Antibody IgG CSF||39572-3|
|0098893||California Encephalitis IgG CSF||49138-1|
|0098895||St. Louis Encephalitis Ab, IgG, CSF||21509-5|
|0098896||Eastern Equine Enceph Ab, IgG, CSF||10897-7|
|0098897||Western Equine Enceph Ab, IgG, CSF||9315-3|