Babesia microti Antibody, IgM by IFA
Ordering Recommendation

Refer to Babesia microti Antibodies, IgG and IgM by IFA (0093048) panel, which includes IgG and IgM by IFA.

Semi-Quantitative Indirect Fluorescent Antibody
Mon, Wed, Sat
1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Serum separator tube. Also acceptable: Lavender (EDTA), green (heparin), and yellow (ACD) 
Specimen Preparation
Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.05 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as acute or convalescent. 
Storage/Transport Temperature
Unacceptable Conditions
Bacterially contaminated, hemolyzed, or lipemic specimens. 
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles) 
Reference Interval
< 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.
Interpretive Data

Compliance Statement A: Analyte specific reagents (ASR) are used in many laboratory tests necessary for standard medical care and generally do not require U.S. Food and Drug Administration (FDA) approval or clearance. 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, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. This test should not be regarded as investigational or for research use.

Component Test Code*Component Chart NameLOINC
0093050Babesia microti IgM16118-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
  • B microti IgM Ab
  • Babesia microti Antibodies (IgM)
  • Babesia Microti IgM Ab