Borrelia burgdorferi Antibody, IgM by Western Blot
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 Western blot test.
LYME M WB
Qualitative Western Blot
New York DOH Approval Status
This test is New York DOH approved.
- Patient Preparation
- Serum separator tube.
- Specimen Preparation
- Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL)
- Storage/Transport Temperature
- Unacceptable Conditions
- 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)
Effective August 15, 2011
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.
Current CDC recommendations for the serologic diagnosis of Lyme disease are to screen with a polyvalent EIA test and confirm equivocal and positive with Western Blot. Both IgM and IgG Western blots should be performed on specimens less than four weeks after appearance of erythema migrans. Only IgG Western blot should be performed on specimens greater than four weeks after disease onset. IgM Western blot 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 Western blot testing within 10 days.
|Component Test Code*||Component Chart Name|
|0050253||B.Burgdorferi Antibody, IgM By WB|
- Lyme Ab
- Lyme Disease (Borrelia burgdorferi Antibody, IgM by Western Blot)