radioactive iodine uptake test

radioactive iodine uptake test
(for thyroid function) a known quantity of radioiodine is administered and 24 hours later the per cent is calculated that has been absorbed by the thyroid gland. Patients who have recently been exposed to iodine compounds, such as in dietary supplements, contrast media, medications, or antiseptics, may not be good candidates for this test.

Medical dictionary. 2011.

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