Arbovirus Antibodies, IgG, CSF
Ordering Recommendation
Not recommended as a stand-alone test. Refer to Arbovirus Antibodies, IgG and IgM, CSF (2001597).
New York DOH Approval Status
Specimen Required
CSF.
Transfer 4 mL CSF to an ARUP Standard Transport Tube. (Min: 1.5 mL)
New York State Clients: 1 mL CSF (Min: 0.1 mL) AND CSF 2 mL (Min: 0.7 mL)
Refrigerated.
New York State Clients: Frozen
Plasma. Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens.
Ambient: 8 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
New York State Clients: Ambient: 4 days; Refrigerated: 1 week; Frozen: 1 month
Methodology
Semi-Quantitative Indirect Fluorescent Antibody/Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Tue, Fri
Reported
1-5 days
Reference Interval
Test Number |
Components |
Reference Interval |
---|---|---|
West Nile Virus Antibody IgG CSF | 1.29 IV or less | |
California Encephalitis IgG CSF | Less than 1:1 | |
St. Louis Encephalitis Ab, IgG, CSF | Less than 1:1 | |
Eastern Equine Enceph Ab, IgG, CSF | Less than 1:1 | |
Western Equine Enceph Ab, IgG, CSF | Less than 1:1 |
Interpretive Data
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.
Component | Interpretation |
---|---|
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. |
Laboratory Developed Test (LDT)
Note
Hotline History
CPT Codes
86651; 86652; 86653; 86654; 86789
Components
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 |