Arbovirus Antibodies, IgG and IgM, Serum
2001594
Ordering Recommendation
 
Mnemonic
ARBOSER GM
Methodology
Semi-Quantitative Indirect Fluorescent Antibody/Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Tue, Fri
Reported
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube. Also acceptable: Plain red.  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.2 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."  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Contaminated, hemolyzed, or severely lipemic specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)  
Reference Interval
Effective February 19, 2013
 
Test Number Components Reference Interval
0050507St. Louis Encephalitis Antibody, IgG by IFA, Serum Less than 1:16
0050508California Encephalitis Antibody, IgG by IFA, Serum Less than 1:16
0050509Eastern Equine Encephalitis Antibody, IgG by IFA, Serum Less than 1:16
0050514Western Equine Encephalitis Antibody, IgG by IFA, Serum Less than 1:16
0050234West 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. 
0098732St. Louis Encephalitis Antibody, IgM by IFA, Serum Less than 1:16
0098731California Encephalitis Antibody, IgM by IFA, Serum Less than 1:16
0098733Eastern Equine Encephalitis Antibody, IgM by IFA, Serum Less than 1:16
0098734Western Equine Encephalitis Antibody, IgM by IFA, Serum Less than 1:16
0050236West Nile Virus Antibody, IgM by ELISA, Serum 0.89 IV or less: Negative -​ No significant level of West Nile virus IgM antibody detected.
0.90-​1.10 IV: Equivocal -​ Questionable presence of West Nile virus IgM antibody detected.  Repeat testing in 10-​14 days may be helpful.
1.11 IV or greater: Positive -​ Presence of IgM antibody to West Nile virus detected, suggestive of current or recent infection. 
Interpretive Data
Refer to individual components.  
Note
 
CPT Code(s)
86651 x2; 86652 x2; 86653 x2; 86654 x2; 86789; 86788
Components
Component Test Code*Component Chart Name
0050234West Nile Virus Ab, IgG, Ser
0050236West Nile Virus Ab, IgM, Ser
0050507St. Louis Encephalitis Ab, IgG, Serum
0050508Calif Encephalitis Antibody IgG
0050509Eastern Equine Enceph Ab, IgG
0050514Western Equine Enceph Ab, IgG, Serum
0098731California Encephalitis IgM
0098732St. Louis Encephalitis Ab, IgM, Serum
0098733Eastern Equine Enceph Ab, IgM
0098734Western Equine Enceph Ab, IgM, Ser
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Arbovirus serology
  • California Encephalitis Antibody, IgG
  • California Encephalitis Antibody, IgM
  • Eastern Equine Encephalitis Antibody, IgG
  • Eastern Equine Encephalitis Antibody, IgM
  • Encephalitis Antibodies
  • St. Louis Encephalitis Antibody, IgG
  • St. Louis Encephalitis Antibody, IgM
  • West Nile Virus Antibody, IgG
  • West Nile Virus Antibody, IgM
  • Western Equine Encephalitis Antibody IgG
  • Western Equine Encephalitis, Antibody, IgM