Skip to contentSkip to navigation


HBsAg/EIA refers to a version of the tests used specifically by the Laboratoire de santé publique du Québec (LSPQ) to confirm all non-negative HBsAg (Hepatitis B surface antigen) results produced in Quebec by both hospital and private laboratories. Hepatitis B is a reportable disease.

Non-reactive HBsAg/EIA and anti-HBc/EIA: viral infection not detected.

Reactive HBsAg/EIA and anti-HBc/EIA: confirmed infection by the hepatitis B virus.

The other combinations of results are followed by automatic confirmation tests and specific indications for the process to be followed: confirmed positive or negative result, invitation to re-test on a new sample.

Term of the Week

Breast cancer

Breast cancer: This is a malignant tumour made up of many cancerous cells. It should be noted that breast cancer is not the most common cause of breast pain, as patients of this disease are often asymptomatic.