What is the benefit of taking potassium iodide during a radiological accident?
When potassium iodide is ingested, it is taken up by the thyroid gland. In the proper dosage, and taken at the appropriate time, it will effectively saturate the thyroid gland in such a way that inhaled or ingested radioactive iodines will not be accumulated in the thyroid gland. The risk of thyroid effects is reduced. Such thyroid effects resulting from radioiodine uptakes due to inhalation or ingestion, or both, could result in acute, chronic, and delayed effects. Acute effects from high doses include thyroiditis, while chronic and delayed effects include hypothyroidism, thyroid nodules, and thyroid cancer.

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1. What is potassium iodide (KI)?
2. What is the role of potassium iodide in radiological emergency preparedness?
3. What is the benefit of taking potassium iodide during a radiological accident?
4. Does this rule imply that America's nuclear reactors are less safe?
5. Why does the rule require States to consider the use of potassium iodide instead of mandating its use?
6. What does it mean for a State to consider the use of potassium iodide?
7. What kinds of things should States consider in deciding whether to incorporate the use of potassium iodide in their emergency planning?
8. What are the recommended dosages of potassium iodide?
9. Can individual members of the public obtain potassium iodide?