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Educational draft · awaiting clinical reviewUse Rapid for revision, not patient-care decisions. Check current national and local guidance and the BNF or BNFC before acting.

Acute behavioural disturbance in mania

Psychiatry · UK scope · Sources checked 27 Aug 2026 · Clinical review pending

RapidFull
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Behavioural disturbance with physiological danger

Airway compromise, cyanosis, collapse, severe hyperthermia, seizure, head injury, fluctuating consciousness or extreme exertion during agitation or restraint is a medical emergency, whatever the presumed psychiatric cause.

Action: Stop unsafe restraint, call the emergency team and assess ABCDE with glucose, oxygen saturation, temperature and injury review. Provide resuscitation and cause-specific treatment, maintain trained observation and transfer to an appropriate acute medical setting without delaying care for diagnostic debate.

Synopsis

Manage escalating behaviour in mania through medical assessment, trauma-informed de-escalation and proportionate least-restrictive intervention, while recognising delirium, intoxication and post-restraint physiological emergencies that require immediate treatment.

  • First action is simultaneous safety and medical triage: acute agitation can arise from hypoxia, hypoglycaemia, delirium, intoxication, withdrawal, pain, head injury or mania.
  • Use one calm lead communicator, personal space, simple choices, reduced noise and stimulation, access to food, fluid and toilet, and known preferences or advance statements.
  • Verbal de-escalation and acceptable oral medication are preferred; as-needed medication alone is not a complete de-escalation strategy.
  • Restrictive intervention is justified only after preventive strategies fail and harm is likely without action; continue communication and use the least restrictive proportionate option.
  • For adult rapid tranquillisation, NICE recommends intramuscular lorazepam alone or intramuscular haloperidol with intramuscular promethazine after individual contraindication and exposure review.
  • If information is insufficient, the person is antipsychotic-naive, cardiovascular disease or prolonged QT is present, or no ECG has been done, NICE favours intramuscular lorazepam.
  • Prescribe the initial rapid-tranquillisation medicine as one dose and do not repeat until its clinical effect, observations, adverse effects and total daily exposure are reviewed.
  • After rapid tranquillisation, monitor pulse, blood pressure, respiratory rate, temperature, hydration and consciousness at least hourly, or every fifteen minutes in specified high-risk circumstances.
  • Debrief the patient and staff after containment, assess injury and emotional impact, document the legal and clinical rationale and revise the personalised prevention plan.

Key red flags

Stridor, respiratory depression, cyanosis, collapse, chest pain, severe hyperthermia, seizure or reduced consciousness requires immediate ABCDE management and resuscitation support.

Fluctuating attention, disorientation, fever, autonomic change, focal neurology or abrupt onset suggests delirium, intoxication, withdrawal or another acute medical cause.

Access to weapons, escalating threats, command hallucinations, persecutory fear or behaviour that creates imminent serious harm requires a coordinated emergency safety response.

Prolonged physical struggle, prone positioning, pressure on the neck or chest, obesity, intoxication and respiratory disease increase restraint-related physiological risk.

Pregnancy, frailty, older age, head injury, unknown medication exposure or absent ECG materially changes medicine and restrictive-intervention choices.

Investigation priorities

01
Immediate ABCDE assessmentFirst step

Detect airway, respiratory, circulatory, neurological, glucose, temperature and exposure emergencies during disturbance.

Management branches

First actionDe-escalate while excluding emergency

A person with suspected mania becomes increasingly agitated but communication remains possible.

  1. Call appropriate support, remove hazards and bystanders, reduce stimulation and nominate one calm communicator with safe personal space.
  2. Offer simple choices, oral treatment and basic needs while checking ABCDE, cognition, injury, substances and the immediate harm scenario.
  3. Review the person's crisis plan and preferences and escalate only if preventive strategies fail and significant harm is otherwise likely.
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Sources and review status4 sources · checked 27 Aug 2026 · clinical review pending+
Sources

Sources and review status

National guidance is shown before implementation-dependent detail. Apply principles in context and verify current guidance when a decision affects care. Source check completed 27 Aug 2026; clinical approval remains outstanding.

  • NICE NG10 violence and aggression recommendationsDe-escalation, restrictive intervention, adult rapid tranquillisation and post-dose monitoring.
  • NICE CG185 bipolar disorder recommendationsMania crisis planning, reduced stimulation, risk and acute specialist care.
  • Mental Health Act 1983 Code of PracticeEngland and Wales safeguards and practice standards for restrictive care under the operative legal framework.
  • Resuscitation Council UK adult advanced life supportABCDE-oriented recognition and response to cardiorespiratory deterioration and collapse.

Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem · Content changes

Authoring stateRapid draftClinical stateAwaiting reviewJurisdictionUnited Kingdom