After the Chernobyl disaster in 1986,an attempt was made to prevent thyroid cancer in Poland and some other countries,resulting from the accidental overdose of iodine-131._______________ was administered to children as a substitute to block the gland's uptake of iodine-131.

Question

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Potassium iodide was administered as a substitute to block the thyroid gland's uptake of iodine-131. This is because the thyroid gland takes up iodine, including radioactive iodine, and hence administering non-radioactive iodine in the form of potassium iodide blocks the uptake of radioactive iodine and reduces the risk of thyroid cancer. Sodium chloride (table salt) and sodium bicarbonate have no such effect, while potassium bromide has also been used in the past but is not as effective in blocking iodine uptake by the thyroid gland.

After the Chernobyl Disaster in 1986,an Attempt Was Made to Prevent