Test Overview
Test Methodology

Chemiluminescent Immunoassay

Test Usage

Presence of hepatitis core antibody indicates previous hepatitis B infections. The performance of this assay has not been established with cord blood, neonatal specimens, cadaver specimens, heat inactivated samples or body fluids other than serum.

Reference Range *


* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Specimens may be stored at room temperature up to 8 hours; specimen should be frozen if assay will not be completed within 72 hours of collection.

Test Details
Days Set Up
Daily, 24 hours.
Analytic Time

4 hours

Soft Order Code
MiChart Code
Hepatitis B Core Antibody, IgG and IgM
Chemical Pathology
Specimen Requirements
Collection Instructions

Collect specimen in an SST or red top tube. Centrifuge, aliquot serum into a plastic vial and refrigerate up to 3 days or freeze for longer storage.

Alternate Specimen
Red top tube; Green top tube (heparinized plasma); Lavendar top tube (EDTA plasma)
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Additional Information

The Hepatitis B Core Antibody, IgM assay will be performed on all positive specimens at an additional charge. By ordering the test the clinical acknowledges that additional reflex testing will be performed and billed at a separate additional charge, if indicated.

CPT Code
Fee Code