Define ALARA in the context of radiation safety for surgical personnel.

• A. As Low As Reasonably Achievable; minimize exposure by limiting time, increasing distance, and using shielding.
• B. As Light As Radiation Allowable; maximize distance from equipment.
• C. Always Limit Absorption; increase exposure for better imaging.
• D. Always Low As Reasonably Avoided; ignore shielding if busy.

Answer: (A)

ALARA means keeping radiation exposure as low as reasonably achievable. In practice, this is done by three complementary actions: reducing the time the imaging source is active, increasing the distance between personnel and the radiation source, and using appropriate shielding and barriers.

In the surgical setting, apply ALARA by using the imaging system only as long as needed to obtain the necessary diagnostic information, stepping back or maximizing distance when possible, and employing protective gear such as lead aprons, thyroid shields, and leaded eyewear, along with shielding barriers. The goal is to balance the need for adequate imaging with the obligation to minimize dose to staff and patients.

The other options miss the point: the first is accurate in concept but the phrasing of the others is incorrect or misleading, and they either overemphasize one aspect, suggest increasing exposure, or advocate ignoring shielding.