Anti-HBc IgM (Hepatitis B Core Antibody - IgM)

Tube Type

Test ID   LAB549
EPIC Order
CPT Code(s)   86705
Group/Individual Test   Individual 
Laboratory   Clinical Immunology
Tube Station   30
Specimen Routine: 2 mL blood/Serum Separator Tube/Gold Top
Availability Routine: Monday - Friday
Turnaround Time    1 - 3 days
Reference Range   Non-reactive
Comment Specimens submitted for detection of IgM antibody to HBV Core Antigen (IgM anti-HBc) are tested using a chemiluminescent microparticle immunoassay (CMIA). This assay provides qualitative detection of IgM antibodies against HBV core antigen in human serum using the automated Abbott Architect system.  It is intended for use in the diagnosis of acute/recent HBV infection.  Results are reported as nonreactive, reactive or grayzone.  Additional specimens collected at weekly intervals are recommended for initially grayzone specimens.  Testing these specimens may help to differentiate early acute infection associated with rapidly rising IgM from late acute infection associated with declining or unchanging IgM levels.

Reviewed by jcarr on November 30, 2021

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514