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Feb 8, 2018

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Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Infectious Disease

Hepatitis B Surface Ab

Hepatitis B Surface Ab (HBSABI) Infectious Disease Lab Test

Name: Hepatitis B Surface Ab

Test Name: Hepatitis B Surface Ab

Health Link Test Code: HBSABI

LIS Test Code: AHBS

CPT Code(s): 86706

Methodology: Chemiluminescent Immunoassay

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: Not available stat.

Specimen: Blood

Collection Container: Red cap with yellow ring (SST)

Also Acceptable: Red top

Collection Volume: 3 mL

Pediatric Collection Volume: 1.5 mL

Stability Ambient:

3 days

Stability Refridgerated:

7 days

Stability Frozen:

>7 days

Sample Analyzed: Serum

Testing Volume: 1 mL

Pediatric Testing Volume: 0.5 mL

Specimen Processing:

Centrifuge. If complete barrier has not formed, transfer cell-free serum to plastic vial. Refrigerate.

Specimen Transport:

Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.

Unacceptable Criteria:

Plasma samples are not acceptable.

Interpretation:

                 

<8.0 mIU/mL:

Nonreactive

Individual is considered not immune to HBV infection.

 

If HBcAb and HBsAg are positive with a negative HBsAb, a Hepatitis B Core Ab, IgM is recommended. If HBsAb and HBsAg are negative with a positive HBcAb, then Hepatitis B Viral DNA testing may aid in the interpretation of results.

≥8.0-11.99 mIU/mL:

Borderline

The immune status of the individual should be further assessed by considereing other factors, such as clinical status, follow-up testing, associated risk factors, and the use of additional diagnostic information.

 

If HBcAb and HBsAg are positive with a negative HBsAb, a Hepatitis B Core Ab, IgM is recommended. If HBsAb and HBsAg are negative with a positive HBcAb, then Hepatitis B Viral DNA testing may aid in the interpretation of results.

≥12.0 mIU/mL:

Reactive

Individual is considered immune to HBV infection.

 

If HBcAb and HBsAg are positive with a negative HBsAb, a Hepatitis B Core Ab, IgM is recommended. If HBsAb and HBsAg are negative with a positive HBcAb, then Hepatitis B Viral DNA testing may aid in the interpretation of results.

 

Interpretation of Hepatitis B Test Result

Interpretation Type: Interpretive Guidelines

Effective Date of Reference Range: Mon, 10 Aug 2015 00:00:00 CDT

Test Limitations:

The assay performance characteristics have not been established for cadaver specimens, heat inactivated specimens and other body fluids other than serum.