Detect presence of IgG and IgM antibodies in individuals with a clinical suspicion of West Nile Virus.
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Sun, Tue, Fri
Serum separator tube.
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL) 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."
Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
|0050234||West Nile Virus Antibody, IgG by ELISA, Serum||1.29 IV or less: Negative - No significant level of West Nile virus IgG antibody detected.
1.30-1.49 IV: Equivocal - Questionable presence of West Nile virus IgG antibody detected. Repeat testing in 10-14 days may be helpful.
1.50 IV or greater: Positive - Presence of IgG antibody to West Nile virus detected, suggestive of current or past infection.
|0050236||West Nile Virus Antibody, IgM by ELISA, Serum||0.89 IV or less: Negative - No significant level of West Nile virus IgM antibody detected.
0.90-1.10 IV: Equivocal - Questionable presence of West Nile virus IgM antibody detected. Repeat testing in 10-14 days may be helpful.
1.11 IV or greater: Positive - Presence of IgM antibody to West Nile virus detected, suggestive of current or recent infection.
Refer to individual components for additional interpretive data.
No compliance statements are in use for this test.
|Component Test Code*||Component Chart Name||LOINC|
|0050234||West Nile Virus Ab, IgG, Ser||38997-3|
|0050236||West Nile Virus Ab, IgM, Ser||38166-5|
- West Nile Virus Antibodies
- WNV IgG and IgM