Enzyme-linked immunosorbent assay (ELISA) also known as an enzyme immunoassay (EIA), is a biochemical technique used mainly in immunology to detect the presence of an antibody or an antigen in a sample. It is used as a diagnostic tool in medicine and pathology, as well as a quality-control test across industries. EIA tests serve as a useful tool for determining serum antibody concentrations such as the HIV test since it can be performed to evaluate either the presence of antigen or the antibody in a sample.
Labsystems Diagnostics' Neonatal hTSH FEIA Plus is a fluorometric enzyme immunoassay for the quantitative determination of human thyroid stimulating hormone (hTSH, human thyrotropin) in blood samples dried on filter paper as a primary test for screening of babies for congenital hypothyroidism (CH).
Labsystems Diagnostics' Neonatal Toxoplasma gondii IgM FEIA is a fluorometric enzyme immunoassay intended for the determination of IgM-class antibodies to Toxoplasma gondii in blood samples dried on filter paper. The test is intended as a primary method for screening newborns for congenital toxoplasmosis (CT).