| iodohippurate sodium | Sodium o-iodohippurate;a radiopaque compound formerly used intravenously, orally, or for retrograde urography. When tagged with iodine-131, it was used to measure effective renal plasma flow and to image the kidneys for radioisotopic renography. (05 Mar 2000) |
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| sodium iodide iodine-131 | Prepared from radioactive iodine (131I); practically carrier-free, with a half-life of 8.0 days; used as a diagnostic agent in suspected thyroid disease and in the treatment of selected thyroid diseases. (05 Mar 2000) |
| iodine-131 | <radiobiology> A radioactive iodine isotope, 364 keV peak beta and gamma emitter with a half-life of 8 days. It is used as a tracer in thyroid studies, as therapy in hyperthyroidism, thyroid cancer, and heart disease, and as a label in immunoassay and imaging. (22 Sep 2002) |