HBsAg Enzyme Immunoassay (EIA)<<Return to Laboratory
Detection of the Hepatitis B surface antigen by enzyme immunoassay (EIA).
- Hepatitis B
Serum or plasma sample. Minimum volume required for serum or plasma – 0.5 mL.
Collect blood in serum separator tubes (SST) or EDTA tubes.
Store samples refrigerated or frozen until shipped for testing. Ship frozen samples on dry ice, and refrigerated samples on wet ice
Shipping of specimens shall be done by a TDG certified individual in accordance with TDG regulations. For additional information regarding classification of specimens for the purposes of shipping, consult either Part 2 Appendix 3 of the TDG Regulations or section 3.6.2 of the IATA Dangerous Goods Regulations as applicable.
For additional guidance on the transport of infectious substances in other languages, please click on the link below.
Suspected Hepatitis B infection.
Completed Viral Hepatitis and Bloodborne Pathogens requisition including sender name, address and telephone number. Patient name or identifier (referring specimen lab #), date of birth, suspected exposure, test(s) requested. Type of specimen and date collected. If possible, include the clinical history and lab results that have already been done at local or provincial laboratories.
Automated EIA assay. The presence of HBsAg indicates acute or chronic HBV infection.
15 calendar days.
- Schmidt M, Jimenez A, Mühlbacher A, Oota S, Blanco L, Sakuldamrongpanich T, Schennach H. Seifried E. Head-to_head comparison between two screening systems for HBsAg, anti-HBc, anti-HCV and HIV combination immunoassays in an international, multicentre evaluation study. Vox Sang 2015 109:114-121.