Casandra
Casandra Test Code QD32414Version 1 (DRAFT)
Performing Lab
West Nile Virus Antibody (IgM), CSF
Also known as: WNV IgM CSF
Clinical Use
Order TestUse
Measurement of West Nile virus–specific IgM antibodies in cerebrospinal fluid (CSF) can aid in the diagnosis of central nervous system infection by West Nile virus during the acute phase.
Special Instructions
Not provided.
Limitations
Cross‑reactivity between alphavirus and flavivirus groups, including possible interference from yellow fever or yellow fever vaccination, may affect results; interpret with clinical context and consider confirmatory testing if needed.
Test Details
Methodology
Immunoassay (ELISA)
Biomarkers
West Nile Virus IgM Antibody
AnalyteIndex interpretation • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
1-5 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Cerebrospinal Fluid
Volume
1 mL
Minimum Volume
0.7 mL
Container
sterile plastic screw‑cap container
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 4 days |
| Refrigerated | 7 days |
| Frozen | 30 days |