Radioactive iodine

Radioactive iodine is a radioactive isotope of iodine that can be used in medical treatments and tests. It is commonly used in the treatment of thyroid cancer and hyperthyroidism, a condition where the thyroid gland produces too much thyroid hormone.

Uses[edit | edit source]

Radioactive iodine is used in medicine in two main ways: for treatment and for diagnostic tests.

Treatment[edit | edit source]

In the treatment of thyroid cancer, radioactive iodine is used to destroy any remaining thyroid tissue after a thyroidectomy, a surgical procedure to remove all or part of the thyroid gland. This is done to ensure that any remaining cancer cells are destroyed and to reduce the risk of the cancer returning.

In the treatment of hyperthyroidism, radioactive iodine is used to reduce the production of thyroid hormone. This is done by destroying some or all of the thyroid gland, which is responsible for producing thyroid hormone.

Diagnostic tests[edit | edit source]

Radioactive iodine is also used in diagnostic tests to assess the function of the thyroid gland. This is done by measuring the amount of radioactive iodine that is taken up by the thyroid gland. A high uptake of radioactive iodine indicates that the thyroid gland is overactive, while a low uptake indicates that it is underactive.

Side effects[edit | edit source]

The use of radioactive iodine in medical treatments and tests can have side effects. These can include nausea, swelling of the neck and salivary glands, dry mouth, and changes in taste. In rare cases, exposure to radioactive iodine can increase the risk of developing other types of cancer, such as leukemia.

See also[edit | edit source]

Radioactive iodine Resources
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