Not recommended as a stand-alone test. Refer to Arbovirus Antibodies, IgG and IgM, Serum (2001594).
Semi-Quantitative Indirect Fluorescent Antibody/Semi-Quantitative Enzyme-Linked Immunosorbent Assay
New York DOH Approval Status
Serum separator tube. Also acceptable: Plain red.
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.4 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of acute specimens. Mark specimens plainly as "acute" or "convalescent."
Contaminated, hemolyzed, or severely lipemic, specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Effective February 19, 2013
|St. Louis Encephalitis Antibody, IgG by IFA, Serum||Less than 1:16|
|California Encephalitis Antibody, IgG by IFA, Serum||Less than 1:16|
|Eastern Equine Encephalitis Antibody, IgG by IFA, Serum||Less than 1:16|
|Western Equine Encephalitis Antibody, IgG by IFA, Serum||Less than 1:16|
|West Nile Virus Antibody, IgG by ELISA, Serum||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.
86651; 86652; 86653; 86654; 86789
|Component Test Code*||Component Chart Name||LOINC|
|0050234||West Nile Virus Ab, IgG, Ser||38997-3|
|0050507||St. Louis Encephalitis Ab, IgG, Serum||10906-6|
|0050508||Calif Encephalitis Antibody IgG||10904-1|
|0050509||Eastern Equine Enceph Ab, IgG||10896-9|
|0050514||Western Equine Enceph Ab, IgG, Serum||6957-5|
- Encephalitis Antibodies