| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Western Equine Encephalitis Virus (IgG, IgM) Antibody Panel, IFA
Test CodeWENCPH
Alias/See Also
37311X
CPT Codes
86654 (x2)
Preferred Specimen
1 mL serum
Minimum Volume
0.1 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Grossly icteric
Methodology
Immunofluorescence Assay (IFA)
Setup Schedule
Sets up 5 days a week.
Limitations
False-positive results may be produced if the patient has been immunized against yellow fever or if the patient has had previous infections that produce similar, cross-reacting antibodies.
Reference Range
| W. Equine Enceph. Virus Ab (IgG) | <1:16 titer |
| W. Equine Enceph. Virus Ab (IgM) | <1:16 titer |
Clinical Significance
IgG titers ≥1:16 suggest exposure (either past or recent), while the presence of IgM indicated recent infection.
Performing Laboratory
| Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
| 33608 Ortega Highway |
| San Juan Capistrano, CA 92675-2042 |
Last Updated: June 10, 2024
