PSEA Medical Diagnostic Sonography Practice Test

ALARA stands for As Low As Reasonably Achievable. It embodies the radiation safety idea of reducing exposure to patients and staff while still obtaining the necessary diagnostic information. The emphasis is on balancing dose reduction with practical constraints—cost, available technology, and clinical needs—so that every study uses the smallest dose feasible without compromising image quality. Practical steps include using appropriate exposure parameters, proper shielding and collimation, maintaining distance when possible, and avoiding unnecessary repeats. The other phrasings aren’t the established acronym for this principle, and they don’t capture the balanced, achievable approach that ALARA represents.