Hepatitis B Surface Antibody


Sunquest Code:AUSAB  
Epic Code:LAB6383Epic Name:Hepatitis B Surface Antibody
Synonyms:HBsAB; HepB; Hep B; AUSAB; HBV; HBV Antibody to Surface Antigen
Methodology:Chemiluminescent immunoassay
Turnaround Time:Performed Mon-Fri; results are reported the same day


Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:1.2 mL
Container:Red or gold (gel) (Green (lithium heparin, gel), Green (sodium heparin, no gel), Purple (EDTA), Red (no gel))
Causes for Rejection:Gross hemolysis


Processing and Shipping

Specimen Processing:Within 2 hours centrifuge and leave sample in serum separator tube. If necessary, aliquot 1 mL, 0.5 mL minimum. Freeze aliquot sample if stored more than 7 days.
Shipping Instructions:Ship at refrigerated or frozen temperature.
Stability:3 days at room temperature; 7 days refrigerated.
Test Performed at or Referral Lab Specialty Core  (UMMC-East Bank)


Interpretive

Reference Range:

Less than 8.0 mIU/mL

Nonreactive

8.00 or greater to 11.99 mIU/mL

Indeterminate

12.0 mIU/mL or greater

Reactive

Assay does not differentiate between vaccines and natural infections.

 

For diagnostic purposes, results should be used in conjunction with patient history and other hepatitis markers for diagnosis of acute and chronic infection. A non-reactive test result does not exclude the possibility of exposure to hepatitis B virus.

 

A reactive result does not exclude co-infection by another hepatitis virus.

 

Use:To determine clinical recovery or successful immunization from hepatitis B virus. Quantitative measurement of antibody to hepatitis B surface antigen.


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