Which of the following statements about radiation safety is true?

• A. Radiation exposure can be completely eliminated
• B. ALARA principles aim to minimize radiation dose
• C. Distance from the x-ray tube is irrelevant
• D. Radiation safety measures are optional

Answer: (B)

The statement regarding ALARA principles accurately reflects fundamental concepts in radiation safety. ALARA stands for "As Low As Reasonably Achievable" and emphasizes the need to minimize radiation exposure to both patients and healthcare providers. This principle underlines the importance of using the least amount of radiation necessary to achieve accurate diagnostic results or therapeutic goals, effectively balancing the necessity of radiation use with the need to protect individuals from excessive exposure.

Adhering to ALARA principles involves employing various strategies, such as optimizing imaging protocols, using shielding, and maintaining an appropriate distance from radiation sources when possible. This promotes a culture of safety and responsibility in environments where ionizing radiation is present.

In contrast, the other statements do not align with established principles of radiation safety. Radiation exposure cannot be completely eliminated, as any interaction with radiation sources entails some level of exposure. Furthermore, distance from the x-ray tube is critical for reducing dose, and safety measures are essential and mandated rather than optional, ensuring that all personnel and patients are adequately protected.