Risk Factors

  • History of violent behavior/antisocial personality disorder
  • Psychiatric illness (eg, psychosis, delirium, suicidal/homicidal ideation)
  • Substance use; acute intoxication, withdrawal
  • Prolonged wait times

Warning Signs

  • Angry, irritable demeanor
  • Loud, aggressive speech, cursing, verbal threats
  • Tense posture, clenched fists, pacing
  • Desk or wall pounding, throwing objects

Management

  • Maintain a distance of 2 arm lengths; avoid direct eye contact
  • Interview with door open, clinician closer to the exit
  • Verbal de-escalation:
    • Use calm voice, nonconfrontational approach
    • Provide for basic needs (eg, offer food, drink, blanket) c
    • Listen attentively to clarify patient’s wants/needs
    • Set clear expectations that violence is unacceptable; reinforce that patient will not be harmed
    • Offer choices if appropriate (eg, oral vs intramuscular medications)
  • Chemical & physical restraint when verbal de-escalation fails & violence is imminent