UW Hospital and Clinics Lab Test Directory
| Test Name: |
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Hepatitis B Surface Ab
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| Test Code(s): |
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AHBS / HBSABI
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| CPT Code(s): |
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86706
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| Methodology: |
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Chemiluminescent Immunoassay
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| Days Performed: |
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Mon-Fri, dayshift.
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| Turnaround Time: |
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Stat: Not available stat.
Routine: 4 hours.
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Specimen Requirements
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| Specimen: |
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Blood
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| Collection Container: |
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Preferred: Red cap with yellow ring (SST)
Also Acceptable:
Red top
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| Collection Volume: |
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Preferred: 3 mL
Pediatrics: 1.5 mL
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| Sample Analyzed: |
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Serum
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| Volume Required: |
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Preferred: 1 mL
Pediatrics: 0.5 mL
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| Specimen Processing: |
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Centrifuge within 2 hours. If complete barrier has not formed, transfer cell-free serum to plastic vial. Refrigerate.
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| Specimen Transport: |
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Transport specimen to UWHC Core Laboratory (B4/220). Transport with coolant pack if coming from outreach location.
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| Unacceptable Criteria: |
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Plasma samples are not acceptable.
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| Stability: |
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Ambient: 8 hours
Refrigerated: 7 days
Frozen: okay
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Interpretation
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Interpretive Guidelines:
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| Nonreactive: |
Nonreactive (negative), |
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Lack of protective immunity against HBV infection. |
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| Reactive: |
Reactive (positive), > 10 mIU/mL. |
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Consistent with protective immunity against HBV infection. |
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Anti HBs Hepatitis B antibody HBsAgAb HBSA AB Antibody to hepatitis B surface antigen hep b
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