The nurse is caring for an adolescent who reports using alcohol daily. Which question would the nurse ask to help determine the length of time the client has been using alcohol?

Choice A reason: Asking whether a client has ever experienced a blackout (alcohol-induced memory impairment) is a clinically relevant question in the assessment of alcohol use disorder, as blackouts are associated with rapid increases in blood alcohol concentration and are indicative of heavy, episodic drinking patterns. However, this question addresses the severity and pattern of drinking behavior rather than the duration or length of time the client has been using alcohol. It does not directly elicit information about when alcohol use was initiated and therefore does not fulfill the specific intent of the nurse's inquiry regarding the timeline of use. Choice B reason: Asking the client at what age they started using alcohol is the most direct and clinically appropriate question for determining the length of time the client has been consuming alcohol. By establishing the age of onset and comparing it to the client's current age, the nurse can calculate the duration of alcohol use, which has significant implications for assessing the degree of physiological dependence, tolerance, neurobiological impact, and readiness for intervention. Earlier age of onset is associated with higher rates of alcohol use disorder, greater severity of dependence, and poorer treatment outcomes, making this question foundational in a comprehensive substance use assessment. Choice C reason: Inquiring about legal problems related to alcohol use, such as driving under the influence (DUI), public intoxication, or alcohol-related assault, provides important information about the psychosocial and behavioral consequences of drinking. Legal consequences are 1 of the diagnostic criteria for alcohol use disorder according to the DSM-5. However, this question assesses the social impact of drinking rather than the chronological duration of use. It does not help the nurse establish a timeline of alcohol use and does not answer the question of how long the adolescent has been consuming alcohol. Choice D reason: Asking whether the client drinks at certain times, such as only in the evenings, only on weekends, or in response to specific triggers, addresses the pattern and context of alcohol consumption, providing insight into habitual use, situational triggers, and potential psychological dependence. This information contributes to a comprehensive substance use assessment but is not directed at determining the length of time alcohol use has been occurring. The question is exploratory regarding drinking habits rather than duration and does not fulfill the nurse's stated assessment goal.