Department of Laboratory Medicine
Test Directory

[ Test Name Index ]

[ Home & References ]

Babesia microti Abs, IgG/IgM

Lab Section:  Sendout Reference  
Lab Location:  Sendout
Reference Lab: ARUP 
Test ID: LAB2646 
Methodology: Semi-Quantitative Indirect Fluorescent Antibody
Schedule: Mon, Wed, Sat
Reported: 5-7 days
Specimen Requirements:  Collection: 5.0 mL Blood in a Gold Top Tube.
Pediatric volume: 3 mL.
Acceptable samples: Serum separator tube. Also acceptable: Lavender (EDTA), green (heparin), and yellow (ACD).
Unacceptable conditions: Lipemic, hemolyzed, or bacterially contaminated specimens.
Stability: After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year


Clinical Indications: Elevated antibody levels to B. microti indicate exposure to the organism. Human babesiosis infection is transmitted by the bite of an infected Ixodes tick or less frequently from transfusion with blood from an infected donor. Definitive diagnosis is made by identifying intraerythrocytic organisms in peripheral blood. In patients with low parasitemia, antibody detection by IFA is recommended. The IFA assay can be used as a seroepidemiologic tool to study the frequency and distribution of B. microti in endemic areas especially in persons with mixed infections also involving Borrelia burgdorferi.

Reference Interval:  See patient report or consult reference laboratory website.
Tests in this Panel: 
Test NameReference Interval
Babesia microti Antibody, IgG [LRR6824]
Babesia microti Antibody, IgM [LRR6825]
CPT Code(s): 86753x2
Last Changed: 10/06/2016 02:58:08
Last Reviewed: 12/21/2016 04:56:14