Psychiatric Emergencies
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Direct answer
A psychiatric emergency is any situation in which a patient's mental state poses imminent danger to self or others, or where severe psychiatric illness threatens bodily function — the core list comprises suicidal or homicidal risk, acute agitation and violence, stupor and catatonia, delirium tremens and other withdrawal states, neuroleptic malignant syndrome, serotonin syndrome, lithium toxicity, and drug overdose. Management follows a fixed sequence: immediate safety of patient, staff and others; rapid medical assessment including reversible organic causes; specific treatment of the syndrome; and legal framing under the Mental Healthcare Act 2017, which governs admission, restraint and consent in India.
What you must remember
- Agitation and violence: de-escalation first, then oral before parenteral medication — lorazepam alone or with haloperidol (or olanzapine) is standard; physical restraint is a time-limited, documented last resort.
- Catatonia: immobility, mutism, posturing, waxy flexibility and echophenomena; screen with the Bush-Francis scale and treat with parenteral lorazepam challenge — ECT for non-response or malignant catatonia; exclude organic causes.
- Stupor: treat as catatonic, depressive or organic until proved otherwise — investigate before attributing to psychosis.
- Suicide and self-harm: never leave the patient alone, remove means and arrange admission or intensive follow-up; duty of care supersedes minor confidentiality breaches in imminent risk.
- Organic emergencies to recognise instantly: delirium tremens (benzodiazepine and thiamine), neuroleptic malignant syndrome (rigidity, fever, raised creatine kinase — stop antipsychotic, dantrolene or bromocriptine), serotonin syndrome (clonus, hyperreflexia — cyproheptadine), lithium toxicity above about 1.5 mEq/L (stop lithium, haemodialysis if severe).
- Indian legal frame: the Mental Healthcare Act 2017 decriminalised attempted suicide (presumed severe stress, care not prosecution), codified consent and advance directives, restricted seclusion and restraint, and set duties on police and magistrates.
- Emergency ECT: rapid and legitimate for severe suicidal depression, refusal of food, catatonia and postpartum psychosis when delay is dangerous.
Common confusion
Catatonia versus neuroleptic malignant syndrome is the subtlest pair — both can show rigidity, fever and autonomic instability; NMS follows antipsychotic exposure with marked creatine kinase rise, while catatonia may precede any drug and responds to lorazepam (ECT treats both). Agitation from delirium versus agitation from psychosis is the management fork: the delirious patient needs medical work-up and cautious antipsychotic with benzodiazepine only if withdrawal; the psychotic patient needs antipsychotic-led control. Also distinguish restraint (last resort, time-limited) from seclusion (more restricted under the 2017 Act) in legal stems.
Exam-focused takeaway
NEET-PG frames emergencies as sequence questions: the violent patient gets de-escalation then lorazepam with haloperidol; the mute, rigid, febrile patient gets creatine kinase, stop the antipsychotic and dantrolene or bromocriptine; the clonus-hyperreflexia patient after new serotonergic drugs gets cyproheptadine; the tremoring ataxic patient on lithium gets a level and dialysis assessment. Legal one-liners test the Mental Healthcare Act 2017 — decriminalisation of attempted suicide, presumed severe stress, and restraint as a time-limited last resort. Lorazepam emerges as the catatonia answer every year.
Frequently asked questions
How is an acutely violent patient managed?
De-escalation first, then lorazepam with haloperidol; restraint only as a brief, monitored last resort.
What is the first step in suspected catatonia?
Exclude organic causes and give a parenteral lorazepam challenge; ECT for non-response.
Which psychiatric emergencies carry the highest immediate mortality?
Delirium tremens, neuroleptic malignant syndrome, severe lithium toxicity and suicidal crises.
What does the Mental Healthcare Act 2017 say about attempted suicide?
It is decriminalised; the person is presumed under severe stress and owed care and rehabilitation.
When is emergency electroconvulsive therapy indicated?
In severe suicidality, refusal of food, malignant catatonia and postpartum psychosis when delay is dangerous.
How is restraint legally framed in India?
Under the 2017 Act it is an exceptional, least-restrictive, time-limited measure to prevent imminent harm, with documentation.