| Synonym(s): |
Enzyme Immunoassay (EIA) for the Detection of Hepatitis B Surface Antigen (HBsAg) in Human Serum Specimens |
| Requisition Form |
G-2A |
| Test Description |
A qualitative enzyme immunoassay for the detection of Hepatitis B Surface Antigen (HBsAg) in human serum |
| Pre-Approval Needed |
N/A |
| Supplemental Information Required |
N/A |
| Supplemental Form(s) |
N/A |
| Performed on Specimens from (sources) |
Human |
| Sample/Specimen Type for Testing |
Serum |
| Minimum Volume/Size Required |
500 µL |
| Storage/Preservation Prior to Shipping |
Serum separated from the clot may be stored at 2°C to 4°C up to 48 hours, but then must be frozen at -20°C or colder |
| Transport Medium |
N/A |
| Specimen Labeling |
At least 2 patient specific identifiers: First and last name as one identifier and a DOB or a unique patient specific identifier (e.g. Medical Record number); must match information on submission form (G-2A). |
| Shipping and Specimen Handling Requirements |
- Ship according to Dangerous Goods Regulations, IATA, and/or CFR 49.
- Handled as infectious agent using universal precautions.
- Triple contained in accordance with federal shipping regulations for infectious agents.
Additional forms & resources
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| Method |
EIA for the detection of antibodies |
| Turn-around Time |
4 working days |
| Interferences/Limitations |
A person who has been vaccinated for hepatitis B may have transient reactivity for up to 18 days. |
| Common Causes for Rejection |
Insufficient quantity, unacceptable specimen type or source, improper shipping conditions, expired media or collection container, discrepancies between specimen label and submission form, and/or incomplete or missing submission form |
| Additional Information |
A designation of reactive for HBsAg must not be based on a single reactive test result. |