What precaution is commonly recommended for patients receiving radioactive iodine therapy?

• A. Share a room with family after 24 hours
• B. Private room or isolation
• C. No precautions
• D. Wear a mask at all times

Answer: (B)

Radiation safety is the key idea. Radioactive iodine emits radiation from inside the patient, so to protect others, the person is placed in a private room or kept in isolation. This reduces exposure to family and healthcare staff by limiting close contact and time spent near the patient, and it often includes measures like a dedicated bathroom and visiting restrictions. The other options don’t address the internal source of radiation or reduce exposure effectively. Wearing a mask doesn’t mitigate the risk of radiation to others, and sharing a room or having no precautions would increase exposure.