Drug overdose children โ
Drug overdose in children requires rapid ABC stabilisation, identification of the substance, and targeted treatment.
Both accidental ingestions (toddlers) and intentional overdoses (adolescents) must be considered.
Refer to UK poisons information services (e.g., TOXBASE) for substanceโspecific management.
๐ซ Stabilisation of ABCs
- Airway: Ensure patency; airway adjuncts or intubation if GCS decreases.
- Breathing: Monitor RR & Oโ sats; provide supplemental oxygen or ventilation if needed.
- Circulation: Assess for shock; obtain IV access and initiate IV fluids if hypotensive.
๐ต๏ธ Quick History
- ๐ฆ Substance: Identify drug/packaging if possible.
- โ๏ธ Amount: Estimate ingestion dose.
- โฐ Timing: Time since ingestion informs decontamination/antidote decisions.
- โ Coโingestions: Alcohol, OTC meds, household products.
- ๐ง Intent: Accidental vs deliberate (especially in adolescents; selfโharm pathways per NICE selfโharm guidance NG225).
๐ฉโโ๏ธ Initial Exam & Observations
- GCS for level of consciousness.
- Pupils: pinpoint (opioids) vs dilated (anticholinergics, stimulants).
- Vital signs: bradycardia/tachycardia, hypo/hypertension, temperature abnormalities.
- Skin: dry/flushed (anticholinergic), sweaty (sympathomimetic), clammy (shock).
- Neuro: seizures, tremors, rigidity (TCAs, stimulants).
๐งฉ Classic Toxidromes
- ๐ Opioid: Pinpoint pupils, โRR, โGCS โ Naloxone where indicated.
- ๐ฟ Anticholinergic: Dilated pupils, dry hot skin, tachycardia, agitation.
- โก Sympathomimetic: Agitation, tachycardia, hypertension, dilated pupils.
- ๐ง Cholinergic: SLUDGE signs (salivation, lacrimation, urination, diarrhoea) with bradycardia.
๐งช Investigations
- Pointโofโcare glucose (exclude hypoglycaemia).
- U&E, LFTs (metabolic derangements).
- ABG (acidosis/hypoxia).
- ECG (arrhythmias, QRS/QT prolongation in TCA or sodium channel blocker toxicity).
- Toxicology screen (urine/blood) and substance levels if available.
๐งด Decontamination & Elimination
- Activated charcoal within 1 hr if appropriate and airway protected.
- Whole bowel irrigation for iron, lithium, or sustainedโrelease tablets in specific cases.
- Gastric lavage only in rare, lifeโthreatening ingestions early after ingestion.
๐ Key Antidotes & Targeted Therapy
- ๐ Naloxone: For opioid toxicity with respiratory depression.
- ๐งช NโAcetylcysteine (NAC): For paracetamol overdose; follow local paediatric protocols.
- ๐ค Flumazenil: For benzodiazepine overdose only in select cases (seizure risk).
- ๐ง Sodium bicarbonate: For TCA toxicity and significant QRS prolongation.
- ๐งฒ Deferoxamine: For iron toxicity when levels/clinical signs indicate.
- ๐ Glucagon/Calcium/Highโdose Insulin: For ฮฒโblocker and Caโchannel blocker overdose (specialist care).
๐งญ SubstanceโSpecific Pointers
- ๐ก๏ธ Paracetamol: NAC and monitoring of LFTs/INR as per UK paediatric regimens.
- ๐ Salicylates: Alkalinisation with sodium bicarbonate; haemodialysis if severe.
- ๐ Opioids: Titrate naloxone and support airway/ventilation.
- ๐ด Benzodiazepines: Supportive care; flumazenil rarely appropriate due to seizure risk.
- ๐งฒ Iron: Consider whole bowel irrigation and deferoxamine with high levels.
- โค๏ธ TCAs: Sodium bicarbonate for arrhythmias; benzos for seizures.
๐ง PostโRecovery Care & Safeguarding
After stabilisation, address psychosocial factors. Adolescents with intentional overdose require formal assessment under NICE selfโharm guidance (e.g., NICE NG225: Selfโharm).
Child maltreatment considerations should be applied if the child could not access the substance independently or explanations are inconsistent, per safeguarding guidance.
๐ช Family & Social Dynamics
- Assess family conflict, parental mental health/substance misuse.
- Bullying, social isolation, peer pressure.
๐งพ Ongoing Support
- Referral to paediatric/psychiatric services (CAMHS) where indicated.
- CBT, family therapy, school support, safety planning.
- Secure storage of medications.
๐ก Exam Tip: Structure your approach: Stabilise โ Identify substance โ Recognise toxidrome โ Targeted investigations/antidotes โ Psychosocial assessment.
๐ NICE & UK Resources