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West Nile Virus Antibodies, Serum (IgG & IgM)
| Item | Value | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Approval req'd? | No | ||||||||||||
| Available Stat? | No | ||||||||||||
| Test code | WNVS | ||||||||||||
| Test group | WNV | ||||||||||||
| Performed by | Quest | ||||||||||||
| Sendout? | Yes | ||||||||||||
| Method | EIA | ||||||||||||
| Container type | Gold top, Red top | ||||||||||||
| Amount to Collect | 4 mL blood | ||||||||||||
| Sample type | Serum (see Collection Instructions) | ||||||||||||
| Preferred volume | 2 mL serum | ||||||||||||
| Min. Volume | 0.7 mL serum | ||||||||||||
| Processing notes | Order Quest test #36596 , freeze serum at -20C. Note: Do not use test code WNVN (WNV NAT) or PTXID (Organ Donor Testing) when only West Nile Virus is ordered. Only use test code WNVS. |
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| Units | Index | ||||||||||||
| Normal range | West Nile Virus IgG:
West Nile Virus IgM:
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| Synonyms | WNV | ||||||||||||
| Stability | Room temperature 4 days, refrigerated 1 week, frozen @ -20C 1 month, frozen @ -70C indefinite | ||||||||||||
| Reflex? | See 'Additional information' | ||||||||||||
| Additional information | West Nile Virus (WNV) IgM antibodies, in blood or CSF, are positive in most infected people within 8 days of onset of symptoms and may remain detectable for months. In our laboratory, sera with reactive IgM are rerun in a modified test to rule out nonspecific reactions. IgG antibodies indicate either current or past exposure to the virus. | ||||||||||||
| CPT coding | 86788-90, 86789-90 | ||||||||||||
| LOINC code | 36897-7 | ||||||||||||
| Last Updated | 4/3/2012 9:33:45 PM | ||||||||||||
| Entry Number | 1011 |
If you have additional questions regarding this test, please call: 415-353-1667