Test ID: FHBSA
Hepatitis B Virus Surface Antigen, Confirmation
Specimen Type 
Describes the specimen type needed for testing
Varies
Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.
Submit only 1 of the following specimens:
Serum
Draw blood in a plain, red-top tube(s). (Serum-gel tube is acceptable.) Separate from cells within 2 hours of collection. Send 2.5 mL of serum refrigerate in a plastic vial.
Plasma
Draw blood in a lavender-top (EDTA) or pink-top (K2EDTA) tube(s). Separate from cells within 2 hours of collection. Send 2.5 mL of EDTA plasma refrigerate in a plastic vial.
Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.
1.5 mL
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| Hemolysis: | Mild OK; Gross reject |
| Thawing: | Warm reject; Cold OK |
| Lipemia: | Mild reject; Gross reject |
| Icterus: | NA |
| Other: | Heparinized plasma; specimens containing particulate material or obvious microbial contamination. Heat inactivated |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.
| Specimen Type | Temperature | Time |
|---|---|---|
| Varies | Refrigerated (preferred) | 7 days |
| Frozen | ||
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