| radioactive iodine | radioactive iodine test that measures the amount of radioactive iodine excreted in the urine |
|---|---|
| radioactive iodine | test of thyroid function in which the patient is give an oral does of radioactive iodine-131 |
| radioactive iodine | radioactive iodine test that measures the amount of radioactive iodine taken up by the thyroid gland |