14.3 Psychiatric Emergencies: Suicide Risk Assessment & De-escalation

14.3 Psychiatric Emergencies: Suicide Risk Assessment & De-escalation

Quick Answer: Psychiatric emergencies present immediate threats to life, safety, or psychological integrity. Key crises include acute agitation, violent escalation, severe panic attacks, Delirium Tremens (48–72h post-alcohol cessation, treated with benzodiazepines and IV thiamine before glucose), and active suicidal intent. Suicide risk assessment utilizes the SAD PERSONS scale and requires 1:1 continuous observation and environmental sweeps. Management of aggression follows a strict hierarchical ladder: verbal de-escalation first (calm tone, 2 arms' lengths distance, unobstructed exit), rapid tranquilization second (IM haloperidol + promethazine or lorazepam), and physical restraint as a last resort under facility policy (typically a 5-member team, supine positioning, neurovascular checks every 15 minutes).

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The Spectrum of Acute Psychiatric Emergencies

A psychiatric emergency is an acute disturbance in thought, affect, or behavior that renders the patient unable to cope and poses an immediate danger to the life or physical safety of the patient or others in the environment.

1. Acute Agitation and Combative Aggression

• Rapidly escalating motor restlessness, pacing, shouting, verbal threats, property destruction, and direct physical violence;
• Etiologies: Acute psychosis, paranoid delusions, command hallucinations, manic exhaustion, severe substance intoxication or withdrawal, metabolic delirium (hypoglycemia, hepatic encephalopathy), or acute traumatic head injury.

2. Acute Suicidal Crisis & Deliberate Self-Harm

• Active suicidal ideation with concrete intent, lethal planning, access to lethal means, or an interrupted suicide attempt;
• Demands immediate psychiatric stabilization, protective custody, and physical environment modification.

3. Severe Panic Attacks & Crisis States

• Discrete surges of overwhelming sympathetic autonomic activation peaking within 10 minutes: crushing chest tightness, palpitations, dyspnea, trembling, dizziness, paresthesias, derealization, and intense terror of dying or losing control;
• Emergency Nursing Priority: Rule out life-threatening organic medical conditions first (acute coronary syndrome, pulmonary embolism, severe asthma, thyrotoxicosis). Once organic causes are excluded, guide the patient through slow diaphragmatic breathing (in for 4 seconds, hold for 2, out for 6), provide a calm and quiet environment, and offer brief short-acting oral benzodiazepines if non-pharmacological soothing fails.

4. Alcohol & Substance Withdrawal: Delirium Tremens (DTs)

Abrupt cessation or reduction of chronic heavy alcohol intake removes chronic gamma-aminobutyric acid (GABA) receptor stimulation while unmasking up-regulated, hyperactive N-methyl-D-aspartate (NMDA) glutamate receptors, triggering profound central nervous system excitotoxicity.

                               CHRONIC ALCOHOL WITHDRAWAL TIMELINE

+----------------------+    +----------------------+    +----------------------+    +----------------------+
| 6 - 12 Hours         |    | 12 - 24 Hours        |    | 24 - 48 Hours        |    | 48 - 72 Hours        |
| Minor Withdrawal:    |--->| Alcoholic            |--->| Withdrawal Seizures: |--->| DELIRIUM TREMENS:    |
| - Mild tremors       |    |   Hallucinosis:      |    | - Generalized tonic- |    | - Profound delirium  |
| - Anxiety, insomnia  |    | - Auditory/visual    |    |   clonic seizures    |    | - Severe tremors     |
| - Nausea, sweating   |    | - Clear sensorium    |    | - "Rum fits"         |    | - Autonomic storm    |
| - Tachycardia        |    | - Intact orientation |    | - Status epilepticus |    | - Tactile bugs/halluc|
+----------------------+    +----------------------+    +----------------------+    +----------------------+

• Delirium Tremens (DTs) Presentation: The most lethal alcohol withdrawal complication, carrying a 5% to 15% mortality rate if untreated. Manifests 48 to 72 hours (up to 5 days) after the last drink:
  • Profound Delirium: Disorientation to time, place, and person; fluctuating level of consciousness, agitation;
  • Severe Tremors & Motor Hyperactivity: Gross shaking of hands, head, and trunk;
  • Perceptual Distortions: Vivid visual hallucinations (shadows, threatening animals, snakes) and tactile hallucinations (formication)—the agonizing sensation of small insects or worms crawling across or beneath the skin;
  • Autonomic Hyperactivity: Extreme hyperthermia (>38.5°C), marked sinus tachycardia (>120–140 bpm), severe hypertension, drenching diaphoresis, tachypnea, severe dehydration, and electrolyte depletion (hypokalemia, hypomagnesemia).
• Emergency Protocol for Delirium Tremens:
  1. Benzodiazepine Sedation: High-dose titrated benzodiazepines to restore central GABAergic inhibition. Administer Diazepam 10–20 mg IV/oral every 1 to 2 hours (or Chlordiazepoxide orally) until the patient is calm, lightly sedated, but easily arousable;
  2. Intravenous Thiamine (Vitamin B1) Administration:
     • Administer Thiamine 100 to 500 mg IV or IM daily for at least 3 to 5 days;
     • CRITICAL EXAM RULE: Thiamine MUST ALWAYS be administered BEFORE any intravenous glucose or carbohydrate infusion. Administering glucose to a thiamine-deficient alcoholic exhausts remaining cerebral thiamine stores as a cofactor in carbohydrate metabolism, instantly precipitating irreversible Wernicke-Korsakoff Syndrome (triad of ophthalmoplegia/nystagmus, ataxia, and severe confusion progressing to permanent anterograde amnesia and confabulation);
  3. Aggressive Fluid & Electrolyte Repletion: Infuse 3 to 4 liters of balanced crystalloids to replace sweat and vomiting losses; aggressively correct hypokalemia and hypomagnesemia to prevent fatal ventricular arrhythmias;
  4. Seizure & Environmental Precautions: Pad bed rails, place suction and oxygen at bedside, maintain a well-lit room to reduce shadows that provoke visual illusions.

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Suicide Risk Assessment & Nursing Precautions

In Ghana, suicide decriminalization through the amendment of the Criminal Offences Act, 1960 (Act 29) in 2023 transformed suicide management from a criminal offense into a psychiatric and public health priority.

Core Risk Factors for Suicide

• Previous Suicide Attempt: The single strongest statistical predictor of completed suicide;
• Active, Lethal Plan & Means Availability: Possessing concrete plans and readily available means (e.g., organophosphate agricultural pesticides, hanging ropes, firearms, toxic pharmaceuticals);
• Psychiatric Comorbidities: Severe major depression, bipolar depression, schizophrenia with command hallucinations, severe substance dependence, or borderline personality disorder;
• Demographics & Psychosocial Stressors: Male gender (higher completion rate), severe economic hardship, acute social humiliation, loss of employment, divorce or bereavement, chronic intractable pain or terminal physical illness, family history of suicide, profound hopelessness.

Standardized Risk Assessment: The SAD PERSONS Scale

• Clinical Scoring Guidelines:
  • 0 to 4 Points: Low clinical risk. Outpatient psychiatric referral, family accompaniment, safety plan;
  • 5 to 6 Points: Moderate clinical risk. Urgent psychiatric evaluation, strongly consider inpatient admission;
  • 7 to 10 Points: High to extreme clinical risk. Mandatory psychiatric admission, continuous 1:1 observation.

Nursing Suicide Precautions

• Levels of Observation:
  • Level 1: Continuous 1:1 Line-of-Sight Observation: The nurse or designated attendant remains within arm's reach or constant unobstructed visual contact 24 hours a day, including while the patient uses the bathroom, bathes, or sleeps. Mandatory for high-risk patients with active intent or recent attempt;
  • Level 2: Intermittent Observation (15-Minute Checks): For stabilized or moderate-risk patients. Critical Nursing Rule: Checks must be conducted at staggered, unpredictable intervals (e.g., at 8, 14, 11, and 15 minutes) rather than precisely every 15 minutes to prevent the patient from timing suicidal acts between rounds.
• Environmental Safety Sweeps (Ligature & Sharps Control):
  • Confiscate all personal sharp objects: razors, scissors, safety pins, nail clippers, tweezers, mirrors, glass bottles, and medication containers;
  • Remove potential ligatures and clothing items: belts, neckties, scarves, shoelaces, drawstrings, underwire bras, and electrical cords;
  • Inspect patient rooms to eliminate hanging anchor points: remove non-collapsible curtain rods, overhead pipes, and ceiling fan hooks; seal electrical outlets; ensure windows are shatterproof and locked;
  • Serve meals exclusively on paper plates with plastic spoons (no metal knives, forks, or breakable glassware).
• Limitations of "Contracts for Safety":
  • An exam favorite: Written or verbal "no-harm contracts" have no legal standing and have never been demonstrated to prevent suicide. A patient can sign a safety contract while actively concealing suicidal intent. Instead, nurses must establish a collaborative, structured Suicide Safety Plan that identifies triggers, internal coping mechanisms, supportive social contacts, and emergency crisis telephone contacts.

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Non-Pharmacological Management: Verbal De-escalation

When managing escalating agitation or potential violence, non-pharmacological verbal de-escalation must always be the first-line intervention. The nurse intervenes early to defuse tension before physical aggression occurs.

                                VERBAL DE-ESCALATION SAFETY POSTURE

                 [ Nurse ]                                     [ Patient ]
            Stand at 45° angle                            Agitated / Pacing
             Hands open & visible   <--- 2 Arms' Lengths --->   Personal Space Preserved
             Calm low-pitch voice       (6 to 8 Feet)
                               
                     |                                               |
                     v                                               v
              Clear Exit Route                                Clear Exit Route
           (Never get cornered)                            (Never corner patient)

Core Principles of Verbal De-escalation

1. Personal Safety & Buffer Zone:
   • Maintain a physical distance of at least two arms' lengths (approximately 6 to 8 feet) between nurse and patient to prevent sudden unexpected physical strikes or kicking;
   • Never corner the patient: Always ensure the patient perceives an unobstructed physical exit path. Cornering an agitated patient triggers an explosive fight-or-flight panic response;
   • Never get cornered: The nurse must maintain direct, unblocked access to the room exit door at all times. Never allow the patient to stand between you and the exit.
2. Body Language & Non-Verbal Stance:
   • Adopt a non-threatening, open stance at an angled 45-degree position (bladed posture) rather than facing the patient head-on (which communicates direct challenge or confrontation);
   • Keep hands open, relaxed, and visible at waist level. Never cross arms (communicates defiance/judgment), clench fists, or place hands behind back or in pockets (creates suspicion of concealed objects);
   • Maintain calm, intermittent eye contact. Avoid prolonged staring or glaring (perceived as hostile dominance) and avoid looking away entirely (perceived as fear or disinterest).
3. Verbal Communication Techniques:
   • Speak in a calm, soothing, low-pitched, steady, and unhurried tone. Keep vocal volume slightly lower than the patient's;
   • Use concise, simple, concrete sentences. An agitated brain cannot process complex logic or lengthy explanations;
   • Validate Emotional State: Acknowledge feelings without agreeing with delusions (e.g., "I can see how angry and overwhelmed you feel right now. I am here to help you stay safe");
   • Avoid Confrontation: Never argue, debate, mock, or challenge the patient's psychotic beliefs or delusions;
   • Offer Clear Choices: Empower the patient by offering manageable options (e.g., "Would you prefer to sit in the quiet room or sit here by the window? Would you like a glass of cold water or juice?");
   • Set Clear, Non-Punitive Limits: State behavioral limits calmly and objectively (e.g., "Mr. Mensah, I want to hear what you are saying, but you cannot throw chairs or threaten staff. Please step back and speak with me").

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Emergency Pharmacological Restraint: Rapid Tranquilization

When verbal de-escalation fails and the patient continues to exhibit dangerous physical violence or acute psychomotor agitation, rapid chemical tranquilization is indicated to calm the patient quickly without producing unarousable anesthesia or respiratory compromise.

Clinical Regimens for Rapid Tranquilization

1. Oral Medication (First Preference): If the patient shows partial cooperation, always offer oral medication first (e.g., Oral Lorazepam 1–2 mg, Oral Haloperidol 5 mg, or Oral Olanzapine 5–10 mg);
2. Intramuscular (IM) Combination Regimens: If oral medication is refused or impossible:
   • IM Haloperidol (2.5 to 5 mg) COMBINED with IM Promethazine (25 to 50 mg):
     • The premier combination utilized across Ghanaian psychiatric and district hospital units;
     • Pharmacological Rationale: Haloperidol provides potent dopamine D2 receptor blockade to halt psychosis and agitation; Promethazine provides rapid sedative and antihistaminic action while its potent anticholinergic properties directly prevent acute dystonic reactions and EPSE induced by haloperidol;
   • IM Lorazepam (1 to 2 mg) or IM Diazepam (10 mg): Highly effective monotherapy, especially if agitation is driven by stimulant toxicity or alcohol withdrawal;
   • IM Olanzapine (5 to 10 mg): Fast-acting atypical option. CRITICAL WARNING: Do not give IM olanzapine and a parenteral benzodiazepine (e.g., IM lorazepam) together; manufacturers advise separating them by at least 1 hour due to severe risks of fatal cardiorespiratory arrest, profound hypotension, and marked bradycardia.

Post-Tranquilization Nursing Monitoring

• Place patient in the lateral recovery position or semi-Fowler's position to prevent aspiration; never leave patient prone;
• Monitor and record vital signs: Respiratory rate, pulse oximetry (SpO2), pulse rate, and blood pressure every 15 minutes for the first hour, every 30 minutes for the second hour, and hourly thereafter until the patient is fully alert;
• Continuously assess airway patency and respiratory effort (alert physician immediately if respiratory rate falls below 10 breaths/minute or SpO2 drops below 92%).

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Physical Restraint Protocols (Absolute Last Resort)

Consistent with Act 846's emphasis on rights and the least restrictive care, physical mechanical restraint is an extreme, emergency measure used only when all less restrictive alternatives—verbal de-escalation, environmental calming, and pharmacological tranquilization—have completely failed, and the patient poses an imminent, severe threat of serious physical harm to self or others.

+-----------------------------------------------------------------------------------------+
|                    MANDATORY FIVE-PERSON PHYSICAL RESTRAINT TEAM                        |
|                                                                                         |
|                                  [ TEAM LEADER ]                                        |
|                               - Stationed at Head                                       |
|                               - Protects Head/Airway                                    |
|                               - Only Person Speaking                                    |
|                                                                                         |
|             [ STAFF MEMBER 1 ]                     [ STAFF MEMBER 2 ]                   |
|             - Controls Right Arm                   - Controls Left Arm                  |
|             - Secures to Bed Frame                 - Secures to Bed Frame               |
|                                                                                         |
|             [ STAFF MEMBER 3 ]                     [ STAFF MEMBER 4 ]                   |
|             - Controls Right Leg                   - Controls Left Leg                  |
|             - Secures to Bed Frame                 - Secures to Bed Frame               |
+-----------------------------------------------------------------------------------------+

The Five-Person Team Protocol

• Team Composition: Restraint requires a minimum of five (5) trained healthcare personnel;
• Designated Roles:
  • One Team Leader: Positioned exclusively at the patient's head. The team leader is the only person authorized to communicate with the patient during the procedure (preventing confusing cross-talk), protects the patient's head and cervical spine, and continuously monitors airway patency;
  • Four Staff Members: One dedicated staff member assigned to control and secure each individual limb (one for the right arm, one for the left arm, one for the right leg, one for the left leg);
• Restraint Execution: Restraint occurs on a coordinated countdown led by the team leader. Physical force must be the absolute minimum necessary to secure the limbs using approved padded wrist and ankle mechanical restraints.

Critical Positioning Rules

• STRICT PROHIBITION OF PRONE RESTRAINT: Never restrain a patient in the prone (face-down) position. Prone restraint restricts chest wall expansion, compresses the diaphragm, and causes fatal positional asphyxia and sudden cardiac arrest;
• Supine Positioning: The patient must be restrained in the supine position with the head of the bed elevated 30 to 45 degrees to facilitate breathing and prevent aspiration;
• Attachment to Bed Frame: Restraint straps must be secured with quick-release knots directly to the stationary, immovable bed frame. Never attach restraints to movable side rails, as raising or lowering side rails can crush limbs, cause fractures, or tighten restraints into vascular tourniquets;
• Circulatory Slack: Ensure at least two fingers can slip easily beneath the cuffs to prevent neurovascular compromise.

Mandatory Ongoing Nursing Care & Monitoring

1. Continuous 1:1 Nursing Observation: A nurse must remain in constant, uninterrupted visual and physical attendance in the room throughout the entire duration of mechanical restraint;
2. Every 15-Minute Checks:
   • Check and record vital signs (blood pressure, pulse, respiratory rate);
   • Conduct neurovascular assessments on all four restrained extremities: assess radial and pedal pulses, capillary refill time (<2 seconds), skin temperature, color, sensation, and motor twitching;
   • Inspect skin integrity around wrists and ankles for chafing, edema, or friction burns;
3. Every 2-Hour Interventions:
   • Release one limb at a time under the direct physical supervision of at least two staff members to perform passive range-of-motion exercises, reposition the limb, and massage skin pressure points;
   • Offer fluids, nutrition, and bedpan/urinal;
4. Physician Documentation & Orders: Restraints require an immediate in-person evaluation and written order by a medical practitioner, specifying justification, restraint type, and maximum duration (not to exceed 2 to 4 hours without formal re-evaluation);
5. Termination Criteria: Restraints must be discontinued immediately once the patient demonstrates sustained behavioral calm and is no longer an imminent threat. Release occurs sequentially, one limb at a time;
6. Post-Restraint Debriefing:
   • Patient Debriefing: Once calm, conduct a supportive debriefing with the patient to explore what triggered the crisis, clarify why restraint was necessary, re-establish therapeutic rapport, and process emotional distress;
   • Staff Debriefing: Conduct a multidisciplinary team debriefing to review the incident, evaluate team coordination, and formulate preventive strategies to avert future crises.