Anti-HBs Enzyme Immunoassay (EIA)

Detection of antibodies to the Hepatitis B surface antigen by enzyme immunoassay (EIA).

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.

Vaccination against HBV or suspected past Hepatitis B infection.

Completed Molecular and Immuno Diagnostics on Hepatitis requisition form 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.

Microplate EIA or automated assays. This is a quantitative test for vaccine-induced or naturally acquired immunity to HBV infection. It is widely accepted that at least 10 mIU/mLis protective against HBV infection. An adequate response to immunization usually is > 100 mIU/mL.

15 calendar days.

1. Huzly D, Schenk T, Jilg W, Neumann-Haefelin D. Comparison of nine commercially available assays for quantification of antibody response to hepatitis B virus surface antigen. J Clin Microbiol. 2008 Apr;46(4):1298-306.