Arizona Horizontal Gaze Nystagmus (HGN) Practice Test

Blood Alcohol Content refers to the amount of alcohol present in a person's bloodstream, typically expressed as a percentage. This measure is critical in the context of driving under the influence, as it helps determine an individual's level of impairment. A specific BAC threshold is often set by law to indicate legal intoxication levels, which aid law enforcement in making assessments during alcohol-related traffic stops. Understanding BAC is essential for evaluating the effects of alcohol consumption on motor skills and judgment, which directly relates to the objectives of the Arizona Horizontal Gaze Nystagmus testing used in DUI evaluations.