Adolescent Substance Use Screening, explained for the bedside and the exam

Defining it precisely

Adolescent substance use screening uses a short validated tool, most commonly CRAFFT, six questions covering riding in a car driven by someone using substances, using substances to relax or fit in, using alone, forgetting things while using, family or friends suggesting cutting down, and getting into trouble while using.

The defining procedural feature is confidentiality: the adolescent is screened alone, without the parent or guardian present, because disclosure rates fall sharply when a parent can hear the answers. This is standard practice in adolescent primary care and school health settings, though the exact confidentiality protections vary by state law regarding minors' consent to substance use treatment.

The exceptions that matter

Confidentiality is not absolute. If screening reveals a safety risk, such as driving under the influence, suicidal ideation, or abuse, the nurse must break confidentiality per mandatory reporting and safety protocols, and the adolescent should be told upfront that these limits exist before screening begins.

A single positive item does not equal substance use disorder. CRAFFT and similar tools are designed to flag risk for further discussion, not to diagnose dependence; a score above the validated cutoff, typically two or more positive responses, indicates a need for a fuller clinical assessment rather than an automatic referral to treatment.

Using it to prioritise

When a stem shows an adolescent with a parent insisting on staying in the room during a health history, the priority action is to arrange private time with the adolescent alone before substance use or sexual health questions are asked, since accuracy depends on it.

If a screen comes back positive, the priority is a nonjudgmental follow-up conversation exploring frequency, context, and readiness to change, not an immediate report to the parent or an assumption of addiction. Safety questions, including driving after use and use alongside other substances, take precedence within that follow-up.

Traps in exam wording

A common trap has the correct action as insisting the parent leave the room, phrased so it sounds confrontational; test writers still reward it because privacy is what produces honest answers. Choosing to screen with the parent present, even to "save time," is the wrong answer whenever CRAFFT or a similar tool is named.

Another trap follows a positive screen with an answer implying automatic notification of parents or law enforcement. Unless the stem specifies an immediate safety risk, the correct response is further assessment and brief intervention, not disclosure.

Examples from practice

A sixteen-year-old at a wellness visit scores positive on two CRAFFT items: riding with a driver who had been drinking, and using alone. The nurse follows up by exploring the driving incident in detail for immediate safety, then discusses the solitary use pattern using motivational interviewing rather than warnings.

A fifteen-year-old screens negative but the parent later reports finding vaping products at home. The nurse re-screens the adolescent privately rather than relying on the parent's report alone, since disclosure to a parent can differ sharply from disclosure to a clinician.

Summary

Screening is six brief questions, delivered privately, that flag risk rather than diagnose it. A positive result is the start of a further conversation about safety and readiness to change, and confidentiality holds except where an immediate safety concern requires disclosure.