RIA has various meanings in the Medical category. Discover the full forms, definitions, and usage contexts of RIA in Medical.
Radioimmunoassay is a very sensitive in vitro assay technique used to measure concentrations of antigens (for example, hormone levels in the blood) by use of antibodies. As such, it can be seen as the inverse of a radiobinding assay, which quantifies an antibody by use of corresponding antigens.
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