What is the first step taken when a radiation worker reports their dosimeter lost or damaged?

• A. Notify supervisor
• B. Document the incident
• C. Issue them a new dosimeter
• D. Return to work without dosimeter

Answer: (C)

When a dosimeter is lost or damaged, the initial action is to inform your supervisor or the radiation safety officer immediately. This quick notification starts the official response, ensuring your exposure isn’t left unmonitored and allowing the program to quickly arrange a replacement dosimeter and begin any necessary follow-up or investigations. After the supervisor is alerted, the incident should be documented and a new dosimeter issued, but the critical first step is the prompt notification so your dose history stays accurate and appropriate protective actions can be taken. Returning to work without a dosimeter isn’t appropriate because it leaves exposure unmonitored.