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HelpTest Code LAB472 Hepatitis B Surface Antibody (Immune Status), Serum
Infectious
Performing Laboratory
Barnes-Jewish Hospital Laboratory
Methodology
Electrochemiluminescence Immunoassay (ECLIA)
Literature Reference:
Package insert: Roche Diagnostics, Elecsys Anti-HBs, 2022-04, V2.0
Specimen Requirements
Specimen Type: Serum
Container/Tube: Red/Grey or Gold separator tube
Specimen Volume: Full tube
Collections Instructions: Specimen with obvious microbial contamination is not acceptable.
Day(s) Test Set Up
Performed upon receipt
Turnaround Time:
STAT: not available
Routine: 2-4 hours after receipt in laboratory
Test Classification and CPT Coding
Hepatitis B Surface antibody
86706
Reference Values
See Interpretive comments associated with test result. In the context of routine screening, a reactive result may be post infection or post vaccination and is consistent with immunity to Hepatitis B virus. A nonreactive result is consistent with lack of immunity to Hepatitis B virus. If result is equivocal, the immune status should be further assessed, if appropriate, after consideration of clinical status, risk factors and additional diagnostic information.
A quantitative result will also be reported if the antibody concentration is greater than or equal to the positive cut-off of 11.5 mlU/ml.
Literature Reference:
Roche Diagnostics, Elecsys Anti-HBs, 2022-04, V2.0
Additional Information
For BJH Laboratory Use Only
Alternate Tube for Single test only:
1 pink-top (K2EDTA) tube
Note: 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:
See Analyte Stability Chart under General Information for a complete list.
Laboratory Processing Instructions:
Completed specimens are stored refrigerated for 5 days.
LOINC Code Information
| Name | LOINC Code |
| Hepatitis B Surface Antibody, Qual Hepatitis B Surface Antibody,Quant |
22322-2 16935-9 |