ALARA stands for what?

• A. Maintain maximum image quality
• B. Always increase exposure
• C. As Low As Reasonably Achievable to minimize radiation dose
• D. Only shield during pregnancy

Answer: (C)

ALARA means keeping radiation exposure As Low As Reasonably Achievable to minimize the dose while still obtaining clinically useful images. This principle guides radiographers to balance how much exposure is needed with safety: use the lowest exposure factors that give acceptable image quality, and apply protective measures like shielding, proper collimation, and precise positioning to avoid repeats. The idea of “reasonably achievable” accounts for what technology, time, and cost permit, as well as the clinical necessity of the exam. This isn’t about maximizing image quality at any cost, nor about increasing exposure, and shielding is important for all patients (including but not limited to pregnancy) as part of a broader dose-minimization strategy.