Hepatitis B Surface Antibody
| Sunquest Code: | AUSAB | ||
| Epic Code: | LAB6383 | Epic 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) [Alternate Containers: Green (lithium heparin, gel), Green (sodium heparin, no gel), Purple (EDTA), Red (no gel)] |
| Causes for Rejection: | Gross hemolysis |
Processing and Shipping
| Specimen Processing: | Centrifuge within 2 hours of collection and aliquot 1 mL, 0.5 mL minimum. |
| Shipping Instructions: | Ship at refrigerated or frozen temperature. |
| Stability: | 3 days at room temperature; 7 days refrigerated. Freeze aliquot sample if stored for more than 7 days. |
| Test Performed at or Referral Lab | Specialty Core (UMMC-East Bank) |
Interpretive
| Reference Range: |
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.
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| 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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