Final answer:
To protect the thyroid in the event of a nuclear accident spilling radioactive iodine, the administration of potassium iodide (KI) is recommended. This helps to reduce the uptake of radioactive iodine and prevent radiation-induced hypothyroidism or thyroid carcinoma.
Step-by-step explanation:
The administration of potassium iodide (KI) should be followed in the event of a nuclear accident spilling radioactive iodine (I-131) to protect the thyroid and prevent the development of radiation-induced hypothyroidism or thyroid carcinoma. Potassium iodide works by saturating the thyroid with stable iodine, thereby reducing the uptake of radioactive iodine. This helps to protect the thyroid gland from the harmful effects of radiation.
In addition to potassium iodide, other protective measures that may be taken following a nuclear accident include evacuation, sheltering in place, and avoiding contaminated food and water sources.