Psychiatric Emergencies and Excited Delirium in EMS
Field assessment of psychiatric emergencies, verbal de-escalation, chemical restraint options, and how to recognize hyperactive delirium before it becomes an arrest.
September 20, 2026 · 8 min read
Psychiatric calls make up a growing share of EMS volume, and the patient who is agitated, sweating, and superhumanly strong is a true medical emergency. Recognition and early intervention prevent the arrests that follow prolonged struggle.
Verbal de-escalation first
- One provider talks — the rest stay quiet.
- Maintain a safe distance and an open exit path.
- Speak slowly, use short sentences, avoid commands.
- Offer choices ('would you rather sit or stand?') instead of directives.
Recognizing hyperactive delirium
Extreme agitation, hyperthermia, tachycardia, diaphoresis, insensitivity to pain, and unusual strength. Common triggers: stimulant intoxication, severe mental illness decompensation, or metabolic derangement. These patients can arrest suddenly.
Chemical restraint (paramedic scope in many systems)
- Midazolam 5–10 mg IM or IN
- Ketamine 4–5 mg/kg IM (system dependent)
- Monitor airway, SpO₂, ETCO₂, and temperature continuously after restraint
The safety principles
Never restrain a patient prone. Reassess frequently, document thoroughly, and transport to an appropriate facility. Law enforcement helps with scene safety; medical care is your responsibility.
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