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West Nile Virus (IgM), Serum
MessageThis test is currently only available in Bedford CPRS. If you are a BHS provider and wish to see this test offered in BHS CPRS- please contact the BHS Laboratory.
Testing performed at Quest Diagnostics.
Testing performed at Quest Diagnostics.
Test Code
WEST NILE IGM(O)
CPT Codes
86788
Preferred Specimen
1 mL serum
Minimum Volume
0.7 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Enzyme Immunoassay (EIA)
Setup Schedule
Set up: Mon, Wed, Fri a.m.; Report available: Next day
Limitations
Cross reactivity has been observed between alphavirus group and flavivirus group, e.g., yellow fever or yellow fever vaccination.
Reference Range
| Index | Interpretation |
| <0.90 | Antibody not detected |
| 0.90-1.10 | Equivocal |
| >1.10 | Antibody detected |
Last Updated: September 24, 2014
