Which protective measure is specifically aimed at reducing thyroid dose in a radiological incident?

• A. Assess exposure
• B. Establish exclusion zones
• C. Thyroid protection
• D. Long-term cancer risk monitoring

Answer: (C)

Thyroid protection is the protective measure designed to directly lower the radiation dose to the thyroid gland. The thyroid is particularly radiosensitive, so shielding the neck with a thyroid collar or similar material reduces the amount of radiation reaching this organ during a radiological incident. This targeted shielding directly minimizes thyroid dose, which is why it’s the best choice for protecting this specific organ. Other options either focus on measuring exposure, reducing general ambient exposure, or monitoring health after exposure, rather than directly lowering the thyroid’s radiation dose.