radioimmunoassay
- noun
- /ˌreɪdioʊˌɪmjunəˈæsɛɪ/
- Specialized
- A radioimmunoassay can accurately quantify the concentration of specific substances in blood samples.
- radioimmunoassay to measure
- determined by radioimmunoassay
Examples
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Serum samples were stored at -70 degrees C until analysis in batches by a competitive radioimmunoassay technique.
Academic text (1999) -
Vasopressin was determined by radioimmunoassay.
Academic text (1991) -
You've got to do a radioimmunoassay on that blood sample.
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Insulin and C-peptide concentrations were measured by radioimmunoassay with serum.
Academic text (2000) -
Total osteocalcin was measured using radioimmunoassay (IRMA) reagents from Immunotopics according to the manufacturer's instructions.
Blog text (6) -
In the dentist's office, serum antibodies against anti-HBsAg were measured with a radioimmunoassay (Abbott Laboratories, Chicago, USA).
Academic text (1991) -
Serum insulin was measured using insulin radioimmunoassay (RIA), a double-antibody batch method (Pharmacia Diagnostics AB, Uppsala, Sweden).
Academic text (2016) -
Plasma concentration of endothelin was determined by radioimmunoassay employing anti-endothelin-1 antiserum, 125I-endothelin-1, and endothelin-1 standards (Peninsula Labs, Belmont, California, USA).
Academic text (1991) -
The researchers used a radioimmunoassay to measure hormone levels in the patient's blood.
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Doctors often rely on radioimmunoassay techniques to determine thyroid hormone levels in patients.
Synonyms
A lab test that uses antibodies to find or measure proteins in samples like blood
A lab test that uses antibodies to find or measure proteins in body samples
How Sensitive
- Specialized
- Specialized
- Specialized
- Specialized
Surface Forms
Morphology
radioimmunoassay = immunoassay (semi-transparent) = radio + immuno + assay
Built by prefixing 'radio-' to the technical term 'immunoassay'; the parts are morphologically clear but the combining form 'immuno-' and the technical sense make it only partially transparent to general learners.
Etymology
Radioimmunoassay combines radio- ('radioactive'), immuno- ('immune', about antibodies) and assay ('test'). So it literally means a 'test' that uses radioactivity and the body's immune tools to measure very small amounts in the blood.