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Test Code 0291377 Babesia microti IgG Antibodies, Serum

Additional Codes

Mayo Test ID
BABG

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

An adjunct in the diagnosis of babesiosis

 

Follow-up of documented babesiosis

Testing Algorithm

See Acute Tick-Borne Disease Testing Algorithm in Special Instructions.

Method Name

Immunofluorescence Assay (IFA)

Reporting Name

Babesia microti IgG Ab, S

Specimen Type

Serum


Specimen Required


Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL


Specimen Minimum Volume

0.15 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 14 days
  Frozen  14 days

Reject Due To

Hemolysis

Mild OK; Gross reject

Lipemia

Mild OK; Gross reject

Icterus

NA

Other

NA

Reference Values

<1:64

Reference values apply to all ages.

Interpretation

A positive result of an indirect fluorescent antibody test (titer ≥1:64) suggests current or previous infection with Babesia microti. In general, the higher the titer, the more likely it is that the patient has an active infection. Patients with documented infections have usually had titers ranging from 1:320 to 1:2,560.

Day(s) and Time(s) Performed

Monday through Friday; 9 a.m.

Analytic Time

Same day/1 day

Specimen Retention Time

14 days

Test Classification

This test was developed using an analyte specific reagent. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

86753

LOINC Code Information

Test ID Test Order Name Order LOINC Value
BABG Babesia microti IgG Ab, S 16117-4

 

Result ID Test Result Name Result LOINC Value
81128 Babesia microti IgG Ab, S 16117-4

Forms

If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.