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Laboratory Test Directory

Borrelia burgdorferi Antibody, IgM by Immunoblot


Name Method Department Units
Borrelia burgdorferi Antibody, IgM by Immunoblot Qualitative Immunoblot
Send Out Negative or Positive

Specimen Requirements

Serum Spun

Container Type Container Size Specimen Volume

Red tube, (no anticoagulant), No Gel

3 mL 1 mL

Gold tube, (SST) with Gel

3.5 mL 1 mL

Red Tube (no anticoagulant) with Gel

3 mL 1 mL

Room temperature - 48 hour(s)
Refrigerated - 2 week(s)
Frozen - 12 month(s)

Specimen Preparation

  • Centrifuge within 2 hours, separate supernatant and refrigerate
  • Transport to laboratory as soon as possible
  • Avoid repeated freeze/thaw cycles

Reasons for Rejection

  • CSF
  • Plasma unacceptable
  • Contamination
  • Heat treated specimen
  • Hemolyzed specimen
  • Gross lipemia


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.

CPT Code

  • 86617