enzyme immunoassay

en·zyme im·mu·no·as·say

any of several immunoassay methods that use an enzyme covalently linked to an antigen or antibody as a label; the most common types are enzyme-linked immunosorbent assay (ELISA) and enzyme-multiplied immunoassay technique (EMIT).
See also: enzyme-linked immunosorbent assay, enzyme-multiplied immunoassay technique.

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en·zyme im·mu·no·as·say

(EIA) (en'zīm im'yū-nō-as'ā)

Procedure measuring antibodies to detect the analyte of interest and an enzyme linked to the antigen-antibody complex. The enzyme reacts with a substrate to produce a product that is measured to quantitate the amount of antigen-antibody formed.
See also: enzyme-linked immunosorbent assay, enzyme-multiplied immunoassay technique

Medical Dictionary for the Health Professions and Nursing © Farlex 2012