| Ordering Code | 500 |
|---|---|
| Test Name | Hepatitis B Surface Antibody |
| Alias | HBsAb Hep B Surface Ab |
| Preferred Specimen | Serum |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Serum in Plain (Red), Plasma in Lithium Heparin (Green-PST), Plasma in Lithium Heparin (Dark Green-PP No Gel) |
| Optimum Volume | 1 mL |
| Handling Instructions | All specimen types must be centrifuged within 2 hours of collection. If no gel separation present in tube and testing is delayed, plasma/serum is aliquoted from cells within 2 hours of collection. |
| Transport Requirements | Oahu: Ambient Airline: Ambient |
| Specimen Stability | Ambient: 1 Day Refrigerated: 1 Week Frozen: 3 Months Frozen serum samples should be thawed no more than 6 times Frozen plasma samples should only be thawed once DO NOT store in self-defrosting freezers. |
| Rejection Criteria | Grossly Hemolyzed, Lipemia, Insufficient quantity, Specimen older than stability limits |
| Avail. Stat | NO |
| Analytic Time | 3 Days |
| Methodology | Chemiluminescence Immunoassay (CLIA) - Sandwich |
Reference range(s)
The reference ranges listed below are valid on this date of July 15, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Hepatitis B Surface Antibody | ALL | NEGATIVE | NEGATIVE |