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Laboratory Test Directory

West Nile Virus Abs, Serum


Name Method Department Units
West Nile Virus Antibodies Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Send Out IV

Battery Members

WNV IgG and IgM

Specimen Requirements

Serum Spun

Container Type Container Size Specimen Volume

Red tube, (no anticoagulant), No Gel

3 mL 1 mL

Gold tube, (SST) with Gel

3.5 mL 1 mL

Red Tube (no anticoagulant) with Gel

3 mL 1 mL

Room temperature - 2 day(s)
Refrigerated - 2 week(s)
Frozen - 12 month(s)

Specimen Preparation

  • Centrifuge within 2 hours, separate supernatant and refrigerate
  • Avoid repeated freeze/thaw cycles

Reasons for Rejection

  • Contamination
  • Heat treated specimen
  • Hemolyzed specimen
  • Gross lipemia
  • Plasma unacceptable


Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."

CPT Code

  • 86789
  • 86788