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| 81390:ARBOVIRUS ANTIBODIES, IgM | |||||||||
| Methodology: | Indirect Fluorescent Antibody (IFA) | ||||||||
| Edit Date: | 10/29/2010 | ||||||||
| Components: | Western Equine Encephalitis IgM Antibodies / Eastern Equine Encephalitis IgM Antibodies / St Louis Encephalitis IgM Antibodies / Calif-La Crosse Virus Encephalitis IgM Antibodies | ||||||||
| Performed: | Wednesday, Friday | ||||||||
| Released: | 48 hours after setup at PeaceHealth Laboratories’ reference lab. | ||||||||
| CPT Code: | 86651-90 / 86652-90 / 86653-90 / 86654-90 | ||||||||
| Specimen Collection Details | |||||||||
| Collection: | One 7.5 mL serum separator tube (SST). | ||||||||
| Handling: | Centrifuge and separate serum into a plastic vial. Label tube as “acute” or “convalescent.” Refrigerate. | ||||||||
| Stability: | 48 hours ambient, 7 days refrigerated, or 2 months frozen. Avoid repeated freeze/thaw cycles. | ||||||||
| Standard Volume: | 1 mL serum. | ||||||||
| Minimum Volume: | 200 µL serum. | ||||||||
| Transport: | Refrigerated. | ||||||||
| Comments: | Paired testing of acute and convalescent specimens is recommended.
Aid in the diagnosis of suspected arboviral encephalitis. IgM class antibody is detectable within 1 to 3 weeks of onset, peaking and rapidly declining within 3 months. |
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| Reference Range: | |||||||||||||||||||
| < 1:16 titer | |||||||||||||||||||