Babesia Microti IgG & IgM Abs




Test Mnemonic

BMICGM

CPT Codes

  • 86753 - QTY (2)

Includes

  • Babesia microti IgG Abs
  • Babesia microti IgM Abs

Performing Laboratory

ARUP


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLSerumSST (Gold) RefrigeratedRemove serum from cells ASAP or within 2 hours of collection. Parallel testing is preferred and convalescent specimens MUST be received within 30 days from receipt of the acute specimens. Please mark specimens plainly as ACUTE or CONVALESCENT.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.4 mL     

Stability

Environmental Condition Description
AmbientAfter separation from cells: 48 hours
RefrigeratedAfter separation from cells: 2 weeks
FrozenAfter separation from cells: 1 year (avoid repeated freeze/thaw cycles)

Days Performed

Mon, Wed, Sat

Turnaround Time

2 - 6 days

Methodology

Name Description
Indirect Immunofluorescence Assay (IFA)  

Reference Range

Babesia microti IgG Abs
Sex Age From Age To Type Range Range Unit
       < 1:16 Negative - No significant level of detectable Babesia IgG antibody 
       1:16 Equivocal - Repeat testing in 10-14 days may be helpful 
       > 1:16 Positive - IgG antibody to Babesia detected, which may indicate a current or past infection 
Babesia microti IgM Abs
Sex Age From Age To Type Range Range Unit
       < 1:20 Negative - No significant level of detectable Babesia IgM antibody 
       1:20 Equivocal - Repeat testing in 10-14 days may be helpful 
       > 1:20 Positive - IgM antibody to Babesia detected, which may indicate a current or recent infection 

Special Info

Bacterially contaminated, hemolyzed or lipemic specimens are unacceptable. This test is New York DOH approved.

Clinical Info

Useful if Giemsa stain is negative, but high suspicion of babesiosis exists. Will not detect B. duncani or strain M0-1.