Laboratory Test Detail

Last Updated: March 19, 2019 @ 9:13 am

2807

West Nile Antibody, IgM

Specimen:Collect:
  • One SST

Also Acceptable:
  • One Red Top
Submit:
  • 1 mL (Min:0.5 mL) Serum . Submit Refrigerated. Submit in a Standard Transport Tube.
Special Handling:
  • Allow specimen to clot completely at room temperature
  • Separate from cells ASAP
Rejection Criteria:
  • Grossly Lipemic Samples
  • Heat inactivated
  • Hemolyzed specimens
  • Icteric specimen
  • Microbial Contamination
Stability:Ambient: 8 Hour(s); Refrigerated: 2 Day(s); Frozen: 1 Month(s); Incubated: Unacceptable
Methodology:
  • Enzyme-Linked ImmunoSorbent Assay (ELISA)
Performed:Tuesday, Friday
Reported:3-5 Day(s)
CPT Codes:
  • 86788
Interpretive Data:General Reference Range : none detected

WNV IgM may produce false positive results due to other flaviviruses or residual IgM from previous infection present for over 500 days. IgM positive results for children may also be caused by cross-reactivity with enteroviruses.

Please note: updated reference range as of 08/07/2017.
Components:
  • 2807 - WEST NILE AB, IgM
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