Final answer:
The AIS score is used to rate the severity of single injuries and is unaffected by age, gender, and race, ensuring an objective evaluation of anatomical damage.
Step-by-step explanation:
The Abbreviated Injury Scale (AIS) is a scoring system to assess the severity of single injuries. It is used in the medical field, particularly in emergency and trauma services, to provide a standardized measure of injury severity. The AIS is designed to be unaffected by age, gender, and race; these factors do not alter the severity score of a single injury as determined by the AIS. Therefore, the correct answer to the question is 1) Age, gender, and race. This scale helps health providers to remain objective when evaluating injuries, ensuring that the assessment is based purely on the anatomical damage and not influenced by patient demographics or external factors.