Babesia microti Antibody, IgG

Sunquest Code:BABIGG  
Methodology:Indirect fluorescent antibody
CPT Code:86753
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-8 days.
Special Instructions:Parallel testing is preferred. Label samples as acute or convalescent.

Analyte Specific Reagent. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, the FDA has determined that such clearance or approval is not necessary.

Collection Instructions

Optimal Volume:1 mL
Minimum\Peds Volume:0.3 mL
Container:Red or gold (gel) (Green (sodium heparin, no gel), Purple (EDTA), Red (no gel), Yellow (ACD, Solution A) tube available from laboratory)
Causes for Rejection:Hemolyzed, lipemic or bacterially contaminated specimens.

Processing and Shipping

Specimen Processing:Separate serum or plasma from cells ASAP. Centrifuge and aliquot 0.5 mL, 0.05 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:93049


Reference Range:


Less than 1:16

Negative – No significant level of detectable Babesia IgG antibody.


Equivocal – Repeat testing in 10-14 days may be helpful.

Greater than 1:16

Positive – IgG antibody to Babesia detected, which may indicate a current or past infection.




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