What does radioactive iodine (I-131) therapy involve?

Radioactive iodine therapy involves a single oral dose of I-131, a radioactive isotope that is selectively absorbed by overactive thyroid cells or thyroid cancer cells, destroying them with minimal impact on surrounding tissues. After ingestion, you will be required to stay in a designated isolation room for about two weeks to prevent radiation exposure to others. The procedure is typically performed in a specialized nuclear medicine unit within a hospital, and you will be monitored throughout the isolation period.