Definition of radioimmunoassay in English:

radioimmunoassay

Syllabification: ra·di·o·im·mu·no·as·say
Pronunciation: /ˌrādēōˌimyənōˈaˌsā
 
/

noun

Medicine
  • A technique for determining antibody levels by introducing an antigen labeled with a radioisotope and measuring the subsequent radioactivity of the antibody component.
    More example sentences
    • Basal serum C peptide levels were measured by radioimmunoassay after an overnight fast.
    • Plasma folate levels were measured by radioimmunoassay for the quantitative determination of vitamin B 12 and folate in serum.
    • To confirm the diagnosis, allergen specific serum IgE was measured by radioimmunoassay according to the manufacturer's instructions.

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