[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Nursing](https://durgical.com/en/nursing/) › [Mental health and psychiatric nursing](https://durgical.com/en/nursing/areas/mental-health/) › Substance use from the nursing side: screening, intoxication, harm reduction and recovery

# Substance use from the nursing side: screening, intoxication, harm reduction and recovery

- Safe practice

Screen everyone without judging, recognise intoxication and overdose, protect the airway, offer a brief intervention and link to treatment.

Updated Nov 13, 2026

## Key points

- Screen everyone with a validated tool, such as the WHO-based AUDIT for alcohol; people often under-report use.
- History: substances, last use, amount, frequency, duration, route, past withdrawal and past treatment.
- Screening, brief intervention and referral to treatment (SBIRT): short, respectful, focused on the person's own reasons for change.
- Do not leave a person who has passed out from alcohol alone: side-lying position, watch the airway.
- Opioid overdose triad: pinpoint pupils, slow breathing and reduced consciousness; naloxone can prevent death.
- After detoxification, release from prison or a break in use, tolerance falls and overdose risk rises.

## What it is

Substance use disorders behave like other chronic illnesses: they can be treated, remission is possible and relapse is part of the course, not a failure. The nurse screens for substance misuse in every setting, takes a detailed use history, recognises intoxication and overdose, delivers a brief non-judgemental intervention, refers to treatment when needed and supports recovery. Because detoxification lowers tolerance, the risk of overdose rises if the person uses again in the same amount; overdose prevention and naloxone education are part of discharge.

## What it requires

- A non-judgemental, stigma-free approach and private interview.
- Validated screening tools and a referral route agreed by the institution.
- Knowledge of intoxication and overdose signs by substance group.
- Links with treatment, mutual-help groups and recovery services.

## Components

- Screening and history.
- Recognising intoxication and overdose.
- Brief intervention, motivational interviewing and referral.
- Harm reduction, relapse prevention and recovery support.

## How it is applied (and why)

- Ask every person about alcohol, tobacco and other drugs in private, with a validated tool — early detection allows early intervention.
- Record substances, time of last use, amount, frequency, duration and route — this predicts when withdrawal will appear and how severe it may be.
- Assess vital signs, consciousness, pupils and breathing — intoxication can depress breathing, above all when alcohol is mixed with opioids or sedatives.
- If the person is drowsy from alcohol or drugs, keep them on their side and stay with them — a depressed gag reflex can lead to aspiration.
- Give a brief intervention: share the result, ask about their reasons for change, respect ambivalence — a collaborative talk works better than confrontation.
- Refer to specialised treatment when the person meets criteria for a disorder or brief intervention has not worked — severe disorders need longer care.
- Teach the danger of mixing alcohol with opioids or sedatives and of lowered tolerance, and that witnesses can be trained to use naloxone — this saves lives.
- Plan discharge with the person: follow-up, treatment, family support and what to do after a relapse — a relapse means adjusting the plan, not giving up.

## In nursing practice

- Many myths (addiction as a choice, «you can only help someone who wants help») block care; treatment need not be voluntary to work.
- Treat a co-occurring mental disorder together with the substance use disorder.
- In pregnancy, substance use can harm the baby; refer early and without blame.
- Medicines such as those for alcohol use disorder or smoking cessation may be part of the plan; the nurse teaches and watches for effects.

## Common mistakes

- Asking about substances in front of relatives or in a hurry.
- Using labels such as «addict» or «drunk».
- Letting someone «sleep it off» unobserved.
- Discharging after detoxification without overdose education or follow-up.

## Test yourself

Think of the answer, then tap the question to see it.

## What are the three signs of the opioid overdose triad?

Pinpoint pupils, respiratory depression and decreased level of consciousness.

## Why is overdose risk higher after detoxification?

Withdrawal management lowers tolerance; if the person uses their former amount again, they may overdose, especially with opioids.

## What does SBIRT stand for?

Screening, Brief Intervention and Referral to Treatment: screen, give a short motivational talk and refer when a disorder is present or the intervention fails.

[Add to my cards (3)](https://durgical.app/estudiar/?add=/en/nursing/substance-use-from-the-nursing-side-screening-intoxication-harm-reduction-and-re/)

## Elsewhere in DurgiPedia

- [Screening and brief intervention (SBIRT) and harm reduction](https://durgical.com/en/behavioral-science/screening-and-brief-intervention-and-harm-reduction/)
- [Motivational interviewing](https://durgical.com/en/behavioral-science/motivational-interviewing/)
- [Addiction concepts: reward, tolerance, dependence and withdrawal](https://durgical.com/en/behavioral-science/addiction-concepts-reward-tolerance-dependence-and-withdrawal/)
- [Cues, craving and relapse](https://durgical.com/en/behavioral-science/cues-craving-and-relapse/)

## Connections

## Related 2

- [Alcohol withdrawal: CIWA-Ar monitoring, seizure and delirium precautions and thiamine before glucose](https://durgical.com/en/nursing/alcohol-withdrawal-ciwa-ar-monitoring-seizure-and-delirium-precautions-and-thiam/)
- [Opioid withdrawal and overdose risk: COWS monitoring, naloxone and safe discharge](https://durgical.com/en/nursing/opioid-withdrawal-and-overdose-risk-cows-monitoring-naloxone-and-safe-discharge/)

## Related conditions 5

- [Alcohol use disorder](https://durgical.com/en/conditions/alcohol-use-disorder/)
- [Stimulant use disorder (cocaine, amphetamines)](https://durgical.com/en/conditions/stimulant-use-disorder/)
- [Cannabis use disorder](https://durgical.com/en/conditions/cannabis-use-disorder/)
- [Tobacco use disorder](https://durgical.com/en/conditions/tobacco-use-disorder/)
- [Sedative-hypnotic (benzodiazepine) use disorder and withdrawal](https://durgical.com/en/conditions/sedative-hypnotic-use-disorder-and-withdrawal/)

## In Pharmacology 2

- [Medicines for alcohol use disorder](https://durgical.com/en/pharmacology/classes/medicines-for-alcohol-use-disorder/)
- [Smoking cessation medicines](https://durgical.com/en/pharmacology/classes/smoking-cessation-medicines/)

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Educational content for students; it does not replace your institution's protocols, supervised clinical training or a prescriber's order. Dose-calculation examples use made-up numbers: they are educational, not a clinical order.

Sources: [Nursing: Mental Health and Community Concepts, 14.9: Treatment of substance use disorders](https://med.libretexts.org/Bookshelves/Nursing/Nursing%3A_Mental_Health_and_Community_Concepts_(OpenRN)/14%3A_Substance_Use_Disorders/14.09%3A_Treatment_of_Substance_Use_Disorders) (Open RN, Wisconsin Technical College System (CC BY 4.0), LibreTexts, 2022); [Nursing: Mental Health and Community Concepts, 14.4: Substances: use, intoxication and overdose](https://med.libretexts.org/Bookshelves/Nursing/Nursing%3A_Mental_Health_and_Community_Concepts_(OpenRN)/14%3A_Substance_Use_Disorders/14.04%3A_Substances-_Use_Intoxication_and_Overdose) (Open RN, Wisconsin Technical College System (CC BY 4.0), LibreTexts, 2022); [Nursing: Mental Health and Community Concepts, 14.11: Applying the nursing process to substance use disorders](https://med.libretexts.org/Bookshelves/Nursing/Nursing%3A_Mental_Health_and_Community_Concepts_(OpenRN)/14%3A_Substance_Use_Disorders/14.11%3A_Applying_the_Nursing_Process_to_Substance_Use_Disorders) (Open RN, Wisconsin Technical College System (CC BY 4.0), LibreTexts, 2022); [Opioid overdose (fact sheet)](https://www.who.int/news-room/fact-sheets/detail/opioid-overdose) (World Health Organization (WHO), 2025).

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Representative model, for educational purposes only.

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Source: https://durgical.com/en/nursing/substance-use-from-the-nursing-side-screening-intoxication-harm-reduction-and-re/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/nursing/substance-use-from-the-nursing-side-screening-intoxication-harm-reduction-and-re/
