Radioactive Iodine Therapy Home>Conditions_and_Diseases>Endocrine_Disorders>Thyroid>Treatment>Radioactive Iodine Therapy   Mortality Research              Web Pages Radioactive Iodine Treatment In additon to a short FAQ about RAI, there is information for thyroid cancer patients. Includes precautions after RAI treatment. Columbia-Presbyterian Medical Center. Is Radioactive Iodine Therapy Dangerous? HealthCentral - Dr. Dean.