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Hepatitis B Virus Surface Antigen, Confirmation
MessageOrder this assay only when a specimen is repeatedly reactive for hepatitis B surface antigen.
Test Code
3109
Alias/See Also
HEP BsAg Confirmation
Preferred Specimen
One 4 mL serum separator tube.
Minimum Volume
2.5 mL serum at 2-8°C. (Min. 1.5 mL) Submit specimen in an ARUP Standard Transport Tube. Submit specimen according to Biological Substance, Category B, shipping guidelines.
Transport Temperature
2.5 mL serum at 2-8°C. (Min. 1.5 mL) Submit specimen in an ARUP Standard Transport Tube. Submit specimen according to Biological Substance, Category B, shipping guidelines.
Specimen Stability
After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: Indefinitely (avoid repeated freeze/thaw cycles)
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens containing particulate material or obvious microbial contamination. Severely hemolyzed or lipemic specimens. Heat-inactivated specimens. Heparinized plasma.
Methodology
Chemiluminescent Immunoassay
Setup Schedule
Sun-Sat
Report Available
1-3 days
Limitations
Potassium EDTA plasma is acceptable. Separate serum or plasma from cells ASAP.
Clinical Significance
This assay should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular and Tissue-Based Products (HCT/P).
