ALARA stands for what phrase?

• A. As Low As Reasonably Achievable
• B. As Low As Readily Achievable
• C. Always Low And Radiation Avoided
• D. All Levels Are Readily Achievable

Answer: (A)

ALARA stands for As Low As Reasonably Achievable. This is the radiation protection principle that exposures should be minimized to the lowest level that can be realistically achieved, taking into account economic and social factors and the practicality of implementation. It’s not about eliminating all exposure or guaranteeing zero dose; it’s about continuously optimizing safety measures—such as shielding, increasing distance, reducing time near the source, and improving procedures—to achieve meaningful dose reductions that are feasible. The other phrases suggested are incorrect because they either omit the consideration of reasonableness and practicality, imply zero exposure, or misstate the standard idea entirely.