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Borrelia burgdorferi Antibody, IgM by Immunoblot
Copy Utility
Ordering Recommendation
Do not order in the absence of a positive/equivocal ELISA screening test. Useful only when ordered during first 4 weeks of clinical symptoms and concurrently with IgG immunoblot.
Mnemonic
Methodology
Qualitative Immunoblot
Performed
Sun-Sat
Reported
1-2 days
New York DOH Approval Status
Specimen Required
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)
Refrigerated.
CSF or plasma. 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)
Reference Interval
Effective August 15, 2011
Negative
Interpretive Data
For this assay, a positive result is reported when any 2 or more of the following bands are present: 23, 39, or 41 kDa. All other banding patterns are reported as negative.
FDA
Note
Current CDC recommendations for the serologic diagnosis of Lyme disease are to screen with a polyvalent EIA test and confirm equivocal and positive with immunoblot. Both IgM and IgG immunoblots should be performed on specimens less than 4 weeks after appearance of erythema migrans. Only IgG immunoblot should be performed on specimens greater than 4 weeks after disease onset. IgM immunoblot in the chronic stage is not recommended and does not aid in the diagnosis of neuroborreliosis or chronic Lyme disease. Please submit requests for appropriate immunoblot testing within 10 days.
Hotline History
CPT Codes
86617
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0050253 | B. burgdorferi Antibody IgM Immunoblot | 6321-4 |
Aliases
- Lyme Ab
- Lyme Antibodies Detection
- Lyme Antibodies IgM/IgG by Western Blot
- Lyme Disease
- Lyme Disease by PCR
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