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Lab Dept:
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Serology
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Test Name:
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HEPATITIS Bs ANTIBODY (ANTI-HBs)
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General Information
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Lab Order Codes:
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HBABY
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Synonyms:
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Hepatitis Bs Antibody; HbsAb; Hepatitis B Surface Antibody
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CPT Codes:
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86706 – Hepatitis B surface antibody (HbsAb)
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Test Includes:
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Hepatitis B Surface Antibody reported as negative, positive or equivocal.
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Logistics
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Test Indications:
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Useful for identifying previous exposure to HBV. Determining adequate immunity from hepatitis B vaccination.
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Lab Testing Sections:
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Serology - Sendouts
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Referred to:
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Mayo Medical Laboratories (MML Test# 8254)
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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1- 3 days; test set up Monday - Saturday
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Special Instructions:
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N/A
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Specimen
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Specimen Type:
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Whole blood
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Container:
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Red top tube
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Draw Volume:
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3.0 mL (Minimum: 1.5 mL) blood
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Processed Volume:
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1.0 mL (Minimum: 0.5 mL) serum
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Collection:
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Routine venipuncture
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Special Processing:
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Lab Staff: Centrifuge specimen, remove serum aliquot into screw-capped round bottom plastic vial. Store and ship at frozen temperatures. Forward promptly.
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Patient Preparation:
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None
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Sample Rejection:
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Specimens other than serum; lipemic specimens; gross hemolysis; warm specimens; mislabeled or unlabeled specimens
Note: Heparinized specimens will not be tested.
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Interpretive
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Reference Range:
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Negative (reported as negative, positive or equivocal)
Interpretation depends on clinical setting.
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Critical Values:
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N/A
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Limitations:
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Passively acquired anti-HBs (i.e., transfusion, recent immune globulin treatment) does not signify immunity. Anti-HBs may fall below detectable levels over time. Not useful for the demonstration of acute HBV infection. Performance characteristics have not been established for the following specimen characteristics: grossly icteric, lipemia, hemolysis, containing particulate matter or cadaveric specimens.
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Methodology:
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Chemiluminescence Immunoassay
This assay produces both qualitative and quantitative results.
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Contraindications:
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N/A
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References:
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Mayo Medical Laboratories Web Page March 2007
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Updates:
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4/6/2004: Test moved from Memorial Blood Center of Minneapolis to Mayo Medical Laboratories.
3/8/2005: Test method previously listed as Enzyme Immunoassay.
1/20/2006: CPT 2006 updates
3/29/2007: CPT 2007 updates
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