💊 Opioid Overdose Reversal (Naloxone)
UseUse to start airway/ventilation first, then dose naloxone appropriately, titrating low in dependent patients …
SourceAmerican Heart Association. 2020 Guidelines for CPR and ECC: opioid-associated emergency. Circulati…
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
The goal of naloxone is adequate ventilation and airway protection, not full arousal, since over-reversal precipitates withdrawal and pulmonary edema. (original synthesis · not guideline verbatim)
When to use
Use to start airway/ventilation first, then dose naloxone appropriately, titrating low in dependent patients and observing for re-narcotization.
How it works
Airway/ventilation first. Out-of-hospital IM or intranasal. In-hospital non-dependent IV titrated; dependent IV to avoid withdrawal; [pending update]. Observe; infusion for long-acting/large overdoses.
Key points
- The goal of naloxone is adequate ventilation and airway protection, not full arousal, since over-reversal precipitates withdrawal and pulmonary edema. (original synthesis · not guideline verbatim)
- Naloxone is shorter-acting than most opioids, so respiratory depression can recur and observation is required.
- No response after a cumulative prompts reassessment for a non-opioid cause.
References
- [Guideline / primary source]American Heart Association. 2020 Guidelines for CPR and ECC: opioid-associated emergency. Circulation 2020.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Setting | Out-of-hospital / prehospital |
|---|---|
| Opioid dependence/chronic use | No or unknown |
→DispositionNaloxone + ventilatory support
- Airway/ventilation (priority)：Open the airway, bag-mask assisted ventilation, oxygen; ABC first, correcting hypoxia matters more than full arousal
- Naloxone：Out-of-hospital/prehospital: naloxone IM or intranasal, repeat every 2–3 min; call emergency services and assist ventilation simultaneously; the goal is to restore adequate spontaneous ventilation and airway protection, not full arousal (over-reversal can cause acute withdrawal, agitation, pulmonary edema)
- No response：If cumulative [pending update] still gives no response, reassess for a non-opioid cause (hypoxic encephalopathy, mixed poisoning, other causes)
Verification & sources · governance
FAQ
Frequently asked questions
- What are the limits and cautions when using Opioid Overdose Reversal (Naloxone)?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- Does Opioid Overdose Reversal (Naloxone) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is Opioid Overdose Reversal (Naloxone) calculated in practice? Can you show a worked example?
- Inputs: Setting Out-of-hospital / prehospital, Opioid dependence/chronic use No or unknown → Result: Disposition Naloxone + ventilatory support（Airway/ventilation (priority): Open the airway, bag-mask assisted ventilation, oxygen; ABC first, correcting hypoxia matters more than full arousal, Naloxone: Out-of-hospital/prehospital: naloxone IM or intranasal, repeat every 2–3 min; call emergency services and assist ventilation simultaneously; the goal is to restore adequate spontaneous ventilation and airway protection, not full arousal (over-reversal can cause acute withdrawal, agitation, pulmonary edema), No response: If cumulative [pending update] still gives no response, reassess for a non-opioid cause (hypoxic encephalopathy, mixed poisoning, other causes)）