Which safety measure is essential for thyroid radioactive iodine therapy?

Which safety measure is essential for thyroid radioactive iodine therapy?

• A. Isolate briefly to limit exposure to others; hydration; avoid sharing utensils.
• B. There is no need to isolate or educate patients regarding safety.
• C. Extended isolation for months with no guidelines.
• D. Avoid hydration during therapy.

Answer: (A)

The key safety concept is minimizing radiation exposure to others while the patient’s body is emitting radioactivity after thyroid iodine-131 therapy. Iodine-131 is excreted in urine and other secretions, so promoting rapid clearance reduces dose to caregivers and household members. Hydration increases urine production, helping to eliminate the radioisotope faster and lower the radiation emitted to others. A brief period of isolation limits close contact and exposure, and avoiding sharing utensils prevents contamination with radioactive material. This is why the best approach is to have a short isolation, encourage plenty of fluids, and not share eating or drinking utensils. The other options propose no isolation, extended months of isolation, or avoiding hydration, which do not align with safe radioactive-therapy practices.

The key safety concept is minimizing radiation exposure to others while the patient’s body is emitting radioactivity after thyroid iodine-131 therapy. Iodine-131 is excreted in urine and other secretions, so promoting rapid clearance reduces dose to caregivers and household members. Hydration increases urine production, helping to eliminate the radioisotope faster and lower the radiation emitted to others. A brief period of isolation limits close contact and exposure, and avoiding sharing utensils prevents contamination with radioactive material.

This is why the best approach is to have a short isolation, encourage plenty of fluids, and not share eating or drinking utensils. The other options propose no isolation, extended months of isolation, or avoiding hydration, which do not align with safe radioactive-therapy practices.