A radioactive form of iodine, often used for imaging tests or to treat an overactive thyroid, thyroid cancer, and certain other cancers. For imaging tests, the patient takes a small dose of radioactive iodine that collects in thyroid cells and certain kinds of tumors and can be detected by a scanner. To treat thyroid cancer, the patient takes a lar...
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http://www.cancer.gov/dictionary?expand=R
Iodine that gives off radiation. See radioiodine. ... (12 Dec 1998) ...
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http://www.encyclo.co.uk/local/20973
radioiodine.
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http://www.encyclo.co.uk/local/21001
Type: Term Definitions: 1. the iodine radioisotopes 131I, 125I, or 123I used as tracers in biology and medicine.
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http://www.medilexicon.com/medicaldictionary.php?t=45537
Radioactive iodine: An isotope of the chemical element iodine that is radioactive. Radioactive iodine is used in diagnostic tests as well as in radiotherapy of an hyperactive thyroid gland (hyperthyroidism), most often due to Graves disease. For hyperthyroidism, Radioactive iodine is administered in capsule form on a one- time basis. It directly ra...
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