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Test Code 7930 Hepatitis B Core Antibody, IgM (Anti-HBc, IgM), Serum

Performing Laboratory

Barnes-Jewish Hospital Laboratory


Chemiflex Chemiluminometric Immunoassay

Literature Reference:

Abbot Laboratories Architect CORE-M product insert, March 2010 revision

Specimen Requirements

Specimen Type: Serum

Container/Tube: Plain red top, separator gel ok
Specimen Volume: Full tube

Collection Information: Specimen with obvious microbial contamination is not acceptable.

Day(s) Test Set Up

Monday through Friday

Cut-off time: 1000

Turnaround Time:
STAT: not available
Routine: results available the day of testing

Reference Values

Negative (reported as reactive, nonreactive, or greyzone.) If result is greyzone, a new specimen should be submitted for testing.
Interpretation depends on clinical setting. See Hepatitis Serological Profile Interpretation Guide in Special Instructions.

Literature Reference:

Abbot Laboratories Architect CORE-M product insert, March 2010 revision

Test Classification and CPT Coding


Additional Information

For BJH Laboratory Use Only
Alternate Tube:

1 mint or dark green-top (lithium heparin or sodium heparin) tube

1 lavender-top (EDTA) tube

1 pink-top (EDTA) tube
Separator gel tube is acceptable

Performance has not been established with cord blood, neonatal specimen, cadaver specimen, heat-inactivated specimen, or body fluid other than serum or plasma such as saliva, urine, amniotic fluid, or pleural fluid.
Analyte Stability:

Primary tube:3 days 15 to 25° C. Primary tube includes serum stored on the clot, plasma stored on packed red cells, and specimen processed and stored in a separator gel tube.

Separated from cells: 7 days at 2° C to 8° C.

Laboratory Processing Instructions:

Test performed in BJH Core lab. Processed and aliquoted by Cobas 8100 automated line for delivery to the Abbott Architect. Completed specimens are stored refrigerated for 5 days.

Specimen Transport Temperature


LOINC Code Information

Name LOINC Code
Hepatitis B Core Antibody, IgM 31204-1