A<unk>  <unk>  is an immunoassay that uses radiolabeled molecules in a stepwise formation of immune complexes. A<unk>  is a very sensitive in vitro assay technique used to measure concentrations of substances, usually measuring antigen concentrations (for example, hormone levels in blood) by use of antibodies. Although the<unk>  technique is extremely sensitive and extremely specific, requiring specialized equipment, it remains among the least expensive methods to perform such measurements. It requires special precautions and licensing, since radioactive substances are used. In contrast, an immunoradiometric assay (IRMA) is an immunoassay that uses radiolabeled molecules but in an immediate rather than stepwise way. A radioallergosorbent test (RAST) is an example of<unk> . It is used to detect the causative allergen for an allergy.
Radioimmunoassay
Immunoassay
Magnetic immunoassay
Turbidimetric inhibition immunoassay
Direct fluorescent antibody
Cloned enzyme donor immunoassay
Enzyme multiplied immunoassay technique
Rabbit Test