American Registry of Radiologic Technologists (ARRT) Practice Exam

What is the maximum annual dose limit for a radiation worker in rems?

1. 5 rem

2. 10 rem

3. 15 rem

4. 50 rem

The correct answer is: 50 rem

The maximum annual dose limit for a radiation worker is set at 50 rem. This limit is established to ensure the safety and health of individuals working in environments where they are exposed to ionizing radiation. The dose limit takes into account the risks associated with radiation exposure and seeks to mitigate potential harmful effects by establishing a threshold beyond which exposure could pose significant health risks. The 50 rem limit aligns with guidelines from regulatory agencies such as the National Council on Radiation Protection and Measurements (NCRP) and the Occupational Safety and Health Administration (OSHA), which focus on maintaining doses as low as reasonably achievable (ALARA). This approach helps to safeguard workers while allowing for necessary radiation use in medical, industrial, and research settings. Understanding this maximum limit is crucial for radiation workers, as it emphasizes the importance of monitoring exposure and implementing safety protocols to protect themselves and colleagues from potential overexposure.