Anxiety, Obsessive-Compulsive and Trauma-Related Disorders

Anxiety is not a defect. It is the body’s oldest alarm system doing exactly what evolution built it to do — sharpening attention, moving blood to muscle, preparing the organism to survive a threat. It becomes a disorder only when the alarm fires without a fire, fires too loudly, or refuses to switch off, and when the person’s life narrows around avoiding it. This chapter follows that thread through three families of diagnoses that share the same anxious core but wear different clothing: the anxiety disorders, where fear is the presenting problem; the obsessive-compulsive and related disorders, where intrusive thoughts drive repetitive behaviour that briefly buys relief; and the trauma- and stressor-related disorders, where the alarm was installed by something that actually happened. You will learn to grade anxiety by level and match your communication to it, to separate a panic attack from a myocardial infarction, to sit with a person mid-ritual without ripping the ritual away, to deliver trauma-informed care that does not re-traumatise, and to recognise the pharmacologic emergencies — serotonin syndrome, benzodiazepine withdrawal — that turn a quiet unit into a rapid response.

Section 1Anxiety as a Signal: Neurobiology, Levels and the Line into Disorder

The circuitry of threat

The fear response begins before the person is aware of it. Sensory information reaches the thalamus and then splits: a fast, crude route straight to the amygdala, and a slower, detailed route through the cortex. The fast route is why a patient flinches at a dropped clipboard a full second before recognising the sound. When the amygdala fires, it recruits the hypothalamus, which drives sympathetic outflow — tachycardia, diaphoresis, mydriasis, bronchodilation, shunting of blood from gut to skeletal muscle — and simultaneously activates the hypothalamic-pituitary-adrenal (HPA) axis, releasing corticotropin-releasing hormone, then adrenocorticotropic hormone, then cortisol. Every physical complaint your anxious patient brings you — the pounding chest, the dry mouth, the nausea, the trembling hands, the urge to urinate — is a legible readout of that cascade. Naming it as such is itself therapeutic; people are frightened by their own physiology when nobody explains it.

What normally ends the alarm is the prefrontal cortex, which appraises context and inhibits the amygdala, and the hippocampus, which supplies memory of place and time — this is not that alley, this is a hallway, and it is daytime. In anxiety and trauma-related disorders, imaging and clinical behaviour both suggest an overactive amygdala paired with weakened prefrontal inhibition, and a hippocampus that fails to stamp the memory as belonging to the past. That single sentence explains a great deal of practice: why reasoning with a person in severe anxiety does not work (the very structure you are appealing to is offline), why slow diaphragmatic breathing and grounding do work (they act on the body and on orientation rather than on argument), and why a flashback feels like a present-tense event rather than a recollection.

Three neurotransmitters carry most of the clinical weight. GABA is the brain’s principal inhibitory transmitter; benzodiazepines potentiate it, which is why they calm within minutes and why abrupt withdrawal produces the mirror image — seizures. Serotonin modulates the amygdala-prefrontal loop over weeks, which is why SSRIs are first-line and why they are useless as a rescue medication. Norepinephrine, driven from the locus coeruleus, produces the hyperarousal, startle and nightmares of PTSD, which is why an alpha-1 antagonist such as prazosin can quiet trauma nightmares. Match the mechanism to the symptom and the medication chapter stops being memorisation.

Peplau’s levels of anxiety

Hildegard Peplau’s four levels remain the most practical bedside tool in this chapter because they translate directly into what you should say and do. Anxiety is not simply present or absent; it exists on a continuum on which perceptual field, learning capacity and problem-solving all change predictably. At mild anxiety the perceptual field actually widens and learning is enhanced — this is the alertness that makes a student study and a nurse double-check a drip rate. At moderate anxiety the field narrows to the immediate; the person attends selectively, misses peripheral detail, and can still learn with direction and repetition. At severe anxiety the field collapses to a fragment; the person fixates on one detail, cannot problem-solve, and reports headache, nausea, dizziness. At the level of panic there is disorganisation, loss of rational thought, possible hallucination or dissociation, and a genuine risk of injury from disorganised flight.

The nursing implication is the inverse relationship between anxiety level and complexity of communication. As anxiety rises, your sentences get shorter, your voice gets lower and slower, your choices get fewer, and your physical presence gets steadier. Teaching a newly diagnosed patient about their medication is appropriate at mild-to-moderate anxiety and futile at severe. A patient in panic needs a calm nurse, a quiet low-stimulus environment, a simple repeated instruction, and someone who stays — not a pamphlet.

Where the line into disorder falls

Every human being experiences anxiety, so the diagnostic threshold cannot be the presence of the symptom. Three features push a normal response across the line. First, proportion: the fear is out of keeping with the actual danger, judged against the person’s culture and context — a first-generation immigrant’s vigilance about immigration enforcement is not irrational, and calling it a symptom is a clinical error. Second, persistence: the DSM-5-TR requires duration — six months for generalised anxiety disorder, specific phobia and social anxiety disorder; more than one month for PTSD. Third, and most important for nursing, functional impairment: work, school, relationships or self-care are measurably narrowed, usually by avoidance. Avoidance is the engine of every disorder in this chapter. It works brilliantly in the short term, which is exactly why it is so hard to give up, and it guarantees the fear will never be disconfirmed.

These are among the most common psychiatric conditions worldwide, with anxiety disorders affecting roughly one in five adults in a given year and beginning earlier in life than most other diagnoses — often in childhood or adolescence. They cluster heavily with depressive disorders, with substance use disorders (alcohol and benzodiazepines being the classic self-medication route), and with medical illness. Comorbidity is the rule, not the exception, so screening for depression and suicide risk in an anxious patient is not optional. Untreated anxiety disorders are also strongly associated with increased use of emergency departments and with poorer outcomes in chronic medical disease.

It is worth saying plainly, because students absorb the opposite from popular media: people living with these conditions are far more likely to be the victims of violence than the perpetrators of it. Anxiety, obsessive-compulsive and trauma-related disorders make people withdraw, avoid and endure — not attack. When you hear a colleague describe a patient as “dramatic” or “attention-seeking,” translate it: the patient is doing something that has not yet been understood, and the next question is what the behaviour is communicating.

Section 2The Anxiety Disorders: Recognition, Screening and Nursing Care

Panic disorder and agoraphobia

A panic attack is an abrupt surge of intense fear that peaks within minutes and includes at least four of a defined list of symptoms: palpitations, sweating, trembling, shortness of breath, choking sensation, chest pain, nausea, dizziness, chills or heat sensations, paraesthesias, derealisation or depersonalisation, fear of losing control, and fear of dying. Attacks typically resolve within twenty to thirty minutes and leave the person exhausted. A panic attack is a specifier, not a diagnosis — it can occur in any disorder. Panic disorder requires recurrent unexpected attacks plus at least one month of persistent worry about further attacks or a maladaptive change in behaviour to avoid them. That second half is the disorder: the fear of the fear.

The clinical trap is that panic mimics catastrophe. Chest pain, dyspnoea and a sense of impending doom are the presentation of myocardial infarction, pulmonary embolism, arrhythmia, hypoglycaemia, thyrotoxicosis, asthma, pheochromocytoma and stimulant intoxication. A first-time attack in a person over forty, or any attack with focal neurological signs, syncope, hypoxia or an abnormal electrocardiogram, is a medical workup until proven otherwise. Never diagnose panic by reassurance alone, and never let a documented psychiatric history shorten a medical evaluation — diagnostic overshadowing kills people.

Agoraphobia is fear of situations from which escape would be difficult or help unavailable if panic-like symptoms occurred: public transport, open spaces, enclosed spaces, queues and crowds, being outside the home alone. Two or more of those five situations are required. The person either avoids them, endures them with intense distress, or requires a companion. In its severe form it confines a person to their home for years. Agoraphobia is now a stand-alone diagnosis and may occur with or without panic disorder.

Generalised anxiety, social anxiety, phobias and separation anxiety

Generalised anxiety disorder is excessive, hard-to-control worry occurring more days than not for at least six months, about multiple domains, with at least three of six physical symptoms in adults: restlessness or feeling keyed up, fatigability, difficulty concentrating, irritability, muscle tension and sleep disturbance. The worry migrates — finances this week, a child’s health next week — and the person often describes it as having been present “my whole life.” The muscle tension is real and often brings them first to a primary care or musculoskeletal clinic rather than to psychiatry.

Social anxiety disorder is marked fear of social or performance situations where the person may be scrutinised, driven by fear of acting in a way that will be humiliating or negatively judged. The performance-only subtype affects musicians, presenters and clinicians. Specific phobia is intense fear of a circumscribed object or situation — animal, natural environment, blood-injection-injury, situational, other. The blood-injection-injury type is unique in producing a vasovagal response with bradycardia and syncope rather than tachycardia, which matters enormously in nursing: lay that patient supine before the venipuncture, and teach applied tension rather than only relaxation. Separation anxiety disorder is no longer confined to childhood; adults can meet criteria, requiring six months’ duration and centring on fear of losing, or being apart from, attachment figures. Selective mutism is the consistent failure to speak in specific social situations despite speaking elsewhere — a child who talks freely at home and not at school is not being oppositional.

Screening, medical mimics and the therapeutic interview

Assessment precedes intervention every time. The GAD-7 is a seven-item self-report scored 0 to 21, with cut points at 5, 10 and 15 for mild, moderate and severe anxiety; a score of 10 or above warrants further evaluation. It is a screening tool, not a diagnosis, and it is only as good as the conversation around it. Pair it with a depression screen and a direct suicide risk question, because anxiety plus depression plus insomnia is a high-risk combination; if risk is present, move to the formal risk assessment and safety planning process your service uses. Document the score, the date and the plan — a screen with no downstream action is worse than no screen.

Before attributing symptoms to an anxiety disorder, subtract the mimics. Endocrine: hyperthyroidism, hypoglycaemia, pheochromocytoma, Cushing syndrome. Cardiopulmonary: arrhythmia, heart failure, asthma, chronic obstructive pulmonary disease, pulmonary embolism. Neurological: complex partial seizures, vestibular disorders. Substances: caffeine, nicotine, stimulants, decongestants, albuterol, thyroid replacement, high-dose corticosteroids, and withdrawal from alcohol, benzodiazepines or opioids. Medication side effects: akathisia from antipsychotics or, less commonly, SSRIs, is an inner motor restlessness that patients describe as unbearable anxiety and that is treated by lowering the dose or adding propranolol — not by adding another antipsychotic. Missing akathisia and escalating the offending drug is a classic and dangerous error.

The interview itself is an intervention. Sit down. Give your full attention. Use open-ended invitations, then broad openings, then reflection. Silence is a tool, not a failure. Avoid the reflexive habits that feel kind and are not: false reassurance closes the conversation, advice-giving takes the problem away from the person, and “why” questions demand a justification the person does not have.

Section 3Obsessive-Compulsive and Related Disorders

Obsessions, compulsions and the relief trap

Obsessions are recurrent, persistent, intrusive thoughts, urges or images that the person experiences as unwanted and that cause marked anxiety. They are ego-dystonic — the person recognises them as alien to their own values, which is precisely why they are so distressing. Common themes are contamination, doubt about harm (did I lock the door, did I hit someone with my car), symmetry and exactness, forbidden aggressive, sexual or religious thoughts, and fear of losing control. A parent tormented by an intrusive image of harming their infant is describing an obsession, not an intention; the horror they feel is diagnostic, and treating that disclosure as a child-safety confession without careful assessment does enormous harm.

Compulsions are repetitive behaviours or mental acts the person feels driven to perform in response to an obsession or according to rigid rules, aimed at preventing or reducing distress. Washing, checking, ordering, counting, repeating, praying and mental reviewing are typical. The compulsion works — briefly. Anxiety falls, the ritual is negatively reinforced, and the brain learns that the only thing standing between the person and catastrophe is the ritual. That is the relief trap, and it is the entire rationale for treatment: the anxiety must be allowed to fall on its own, without the ritual, so the brain can learn the catastrophe does not come.

Obsessive-compulsive disorder requires that obsessions, compulsions or both consume more than one hour per day or cause clinically significant distress or impairment. The DSM-5-TR adds an insight specifier — good or fair, poor, or absent insight with delusional beliefs — and a tic-related specifier. Severity is commonly quantified with the Yale-Brown Obsessive Compulsive Scale (Y-BOCS). Do not confuse OCD with obsessive-compulsive personality disorder: the latter is a lifelong ego-syntonic style of perfectionism, rigidity and control that the person does not experience as intrusive and generally does not want changed.

The related disorders

The DSM-5-TR groups several conditions with OCD because they share intrusive preoccupation plus repetitive behaviour. Body dysmorphic disorder is preoccupation with perceived defects in appearance that are not observable or appear slight to others, with repetitive mirror-checking, grooming, reassurance-seeking or comparison. It carries a high rate of suicidal ideation and of repeated cosmetic procedures that never satisfy; a muscle dysmorphia subtype is recognised. Hoarding disorder is persistent difficulty discarding possessions regardless of value, due to a perceived need to save them and distress at parting with them, resulting in accumulation that congests living areas — a genuine fire, fall and sanitation hazard. Forced clear-outs without the person’s participation are traumatic and reliably followed by re-accumulation.

Trichotillomania (hair-pulling disorder) and excoriation (skin-picking) disorder are body-focused repetitive behaviours with recurrent pulling or picking, repeated attempts to stop, and resulting hair loss or skin lesions. They respond best to habit reversal training — awareness training, a competing response such as clenching the fists, and social support — rather than to willpower or to being told to stop. Substance- and medication-induced obsessive-compulsive disorder and that due to another medical condition complete the group.

Nursing care and exposure and response prevention

The single most important nursing rule on an inpatient unit is that you do not abruptly block a ritual. A person whose ritual is stopped without preparation experiences a surge to severe or panic-level anxiety, and the therapeutic alliance is often the casualty. Early in admission, allow time for rituals — build them into the schedule, wake the patient earlier so that a two-hour morning routine does not make them miss breakfast and groups, and record baseline frequency and duration. As the alliance and the treatment plan develop, work with the team and the patient to set collaboratively agreed limits, and reduce gradually. Never shame, never mock, never let staff joke about it in earshot.

Exposure and response prevention is the first-line psychotherapy and the gold standard. The person is exposed, in a graded hierarchy, to the feared stimulus — touching a doorknob — and then prevented from performing the neutralising ritual, while the anxiety is allowed to rise and fall naturally. Habituation and, more accurately, inhibitory learning occur: the brain acquires new, competing information that the feared outcome does not follow. The nurse’s role is to know the patient’s hierarchy, to coach rather than rescue during a rising-anxiety window, and — critically — to avoid providing reassurance, because reassurance-seeking is itself a compulsion. Answering “are you sure my hands are clean?” for the fifth time feels kind and is anti-therapeutic. A better response is: “I am not going to answer that one, because answering it feeds the doubt. Let us sit with the uncertainty together for ten minutes.”

Pharmacologically, SSRIs remain first-line but OCD typically requires higher doses and a longer trial — often eight to twelve weeks — than depression or generalised anxiety. Clomipramine, a tricyclic with strong serotonergic activity, is effective and reserved for refractory cases because of anticholinergic effects, orthostatic hypotension, lowered seizure threshold and cardiac conduction effects; a baseline electrocardiogram is standard. Augmentation with a low-dose second-generation antipsychotic is used in resistant illness. Assess physical consequences relentlessly: dermatitis and fissures from washing, dental erosion, dehydration, malnutrition from food-contamination fears, and the exhaustion of a person who sleeps four hours because the checking routine takes three.

Section 4Trauma- and Stressor-Related Disorders and Trauma-Informed Care

Post-traumatic stress disorder and acute stress disorder

These are the only diagnoses in the manual that require an external event. Criterion A is exposure to actual or threatened death, serious injury or sexual violence — directly, as a witness, by learning it happened to a close family member or friend, or through repeated extreme exposure to aversive details in the course of one’s work. That last route is why first responders, forensic staff, child-protection workers and nurses themselves are at risk. Media exposure alone does not qualify unless it is work-related.

Post-traumatic stress disorder then requires symptoms in four clusters, lasting more than one month. Intrusion: unwanted memories, nightmares, flashbacks in which the event is re-experienced as if occurring now, intense distress or physiological reactivity to cues. Avoidance: effortful avoidance of internal reminders (thoughts, feelings) or external ones (people, places, conversations). Negative alterations in cognitions and mood: dissociative amnesia for part of the event, persistent negative beliefs (“I am permanently damaged,” “no one can be trusted”), distorted self-blame, persistent negative emotional state, anhedonia, detachment, inability to feel positive emotion. Alterations in arousal and reactivity: irritable or aggressive outbursts, reckless or self-destructive behaviour, hypervigilance, exaggerated startle, concentration problems, sleep disturbance. Specifiers include with dissociative symptoms (depersonalisation or derealisation) and with delayed expression when full criteria are not met until at least six months after the event.

Acute stress disorder covers the same territory from three days to one month after the trauma, requiring nine or more symptoms across five categories. Most people who meet criteria for acute stress disorder will not go on to develop PTSD, and most people who develop PTSD did not meet criteria for acute stress disorder — so it is a marker of current distress needing support, not a prediction. Note also what is not indicated: single-session psychological debriefing immediately after a critical incident has been shown to be ineffective and potentially harmful. Psychological first aid — safety, comfort, connection to supports, practical help — is what the evidence supports.

Adjustment disorders, grief and childhood attachment disorders

Adjustment disorder is the diagnosis for emotional or behavioural symptoms that develop within three months of an identifiable stressor, are out of proportion to the stressor or cause significant impairment, and resolve within six months of the stressor (or its consequences) ending. Subtypes specify depressed mood, anxiety, mixed, disturbance of conduct, or mixed disturbance of emotions and conduct. It is common in medical-surgical settings after a new diagnosis, a job loss or a divorce, and it is not a “lesser” diagnosis — suicide risk in adjustment disorder is real and must be screened.

Prolonged grief disorder was added to the DSM-5-TR: intense yearning or preoccupation with the deceased, plus symptoms such as identity disruption, disbelief, avoidance of reminders, emotional numbness and difficulty re-engaging, persisting at least twelve months after the death in adults and causing impairment. Naming it matters, because it distinguishes normal grief — which is not a disorder and does not need treatment — from a stuck, disabling form that does. In children, reactive attachment disorder (emotionally withdrawn, rarely seeks or responds to comfort) and disinhibited social engagement disorder (overly familiar with unfamiliar adults) both arise from grossly insufficient care, and both require the caregiving environment to change, not just the child.

Trauma-informed care in practice

Trauma-informed care begins from an assumption, not a screening result: any person you care for may have a trauma history, and the way care is delivered can either support recovery or reproduce the original dynamics of powerlessness. The SAMHSA framework rests on six principles — safety; trustworthiness and transparency; peer support; collaboration and mutuality; empowerment, voice and choice; and attention to cultural, historical and gender issues. Translated to a shift, they sound like this: explain before you touch, tell people what will happen and when, keep every small promise, ask permission, offer real choices even when the options are narrow, and never use force when persuasion has not yet been tried.

Re-traumatisation is usually accidental. Restraint and seclusion recreate physical helplessness; forced medication, being searched, being watched while undressing, being woken by a stranger with a flashlight, having a door held open, being touched from behind, raised voices and being talked about in the third person while present — all of these are ordinary hospital events and all of them can trigger a survivor. Small changes are disproportionately powerful: announce yourself, approach from the front, offer a same-gender staff member for intimate care, ask “is there anything about being in hospital that is especially hard for you?” on admission, and honour the answer in the care plan.

When a flashback or dissociative episode occurs, the intervention is grounding. Orient the person to the present without touching them unannounced: say your name and role, say where they are and what the date is, and invite the senses back online — the 5-4-3-2-1 method (name five things you see, four you can touch, three you hear, two you smell, one you taste), cold water on the hands, feet flat on the floor, a textured object. Speak slowly and in the present tense. Do not ask for the trauma narrative during an episode; the goal is safety and orientation, not disclosure. Evidence-based psychotherapies — cognitive processing therapy, prolonged exposure and eye movement desensitisation and reprocessing — are delivered by trained therapists in a planned way, never improvised at the bedside.

Section 5Pharmacology, Milieu, Delegation and Escalation

First-line agents and the drugs that support them

SSRIs and SNRIs are first-line for essentially every disorder in this chapter. They increase synaptic serotonin (and norepinephrine, for the SNRIs), and over weeks they downregulate postsynaptic receptors and restore prefrontal modulation of the amygdala. Three teaching points decide whether the patient succeeds. First, start low and go slow in anxious patients: a full starting dose commonly produces an initial jitteriness and worsened anxiety in the first one to two weeks, and a patient who is not warned will stop the drug and conclude that medication makes them worse. Second, full effect takes four to six weeks — twelve for OCD — so this is not a rescue medication. Third, do not stop abruptly: discontinuation syndrome (flu-like symptoms, dizziness, electric-shock sensations, insomnia, irritability) is uncomfortable and is worst with short-half-life agents such as paroxetine and venlafaxine. All antidepressants carry a boxed warning for increased suicidal ideation and behaviour in patients under twenty-five; monitor closely in the first weeks and after every dose change.

Buspirone is a 5-HT1A partial agonist used for generalised anxiety disorder. It is non-sedating, non-addictive and does not potentiate alcohol — and it takes two to four weeks to work, so it is worthless as a PRN and patients must be told this explicitly. Hydroxyzine, an antihistamine, is a genuinely useful non-habit-forming PRN with anticholinergic and sedative effects; monitor for dry mouth, urinary retention and falls in older adults. Propranolol, a beta blocker, blunts the peripheral symptoms of performance anxiety — tremor, tachycardia — and is also used for akathisia; hold for bradycardia or hypotension and avoid in asthma. Prazosin, an alpha-1 antagonist, reduces trauma-related nightmares; give at bedtime, warn about first-dose orthostatic hypotension and syncope, and check lying and standing blood pressure. Gabapentin and pregabalin are used as adjuncts, and hydroxyzine, prazosin and buspirone together cover a large share of what a behavioural health nurse administers on nights.

Benzodiazepines potentiate GABA and work within minutes, which is exactly their appeal and exactly their problem. Reserve them for short-term or crisis use, generally two to four weeks, and be alert to sedation, ataxia, falls and hip fracture in older adults, anterograde amnesia, paradoxical disinhibition, and profound respiratory depression when combined with opioids or alcohol — a combination that carries a boxed warning. Tolerance and physiologic dependence develop. Abrupt discontinuation after regular use produces a withdrawal syndrome that includes tremor, diaphoresis, autonomic instability, delirium and seizures, and can be fatal; taper, never stop. Flumazenil reverses benzodiazepine sedation but can precipitate seizures in a dependent patient and is used with great caution. And avoid the language trap: a patient asking about their benzodiazepine dose is asking a question, not “drug-seeking.” Describe the behaviour and assess the need.

Red flags and SBAR escalation

Serotonin syndrome is the emergency of this chapter. It arises from serotonergic excess — typically an SSRI or SNRI combined with a triptan, tramadol, linezolid, lithium, St John’s wort, dextromethorphan, MDMA or an MAOI — and presents with a triad of mental status change (agitation, confusion), autonomic instability (hyperthermia, tachycardia, diaphoresis, labile blood pressure, diarrhoea) and neuromuscular hyperactivity (clonus — especially inducible ankle clonus — hyperreflexia, tremor, rigidity). Onset is typically within twenty-four hours of a new agent or dose increase. Stop the serotonergic drugs, call for help, support with cooling and intravenous fluids, and expect benzodiazepines for agitation and, in severe cases, cyproheptadine. Contrast it with neuroleptic malignant syndrome, which follows antipsychotics, evolves over days, and features lead-pipe rigidity with hyporeflexia and a very high creatine kinase. Hyperreflexia and clonus point to serotonin; rigidity with hyporeflexia points to NMS.

Because a second-generation antipsychotic is sometimes added for refractory OCD or for acute agitation, keep akathisia at the front of your mind on this unit. It is a drug-induced inner restlessness that patients almost always describe to you as anxiety, and it is the one adverse effect that worsens every time it is treated as anxiety: it needs dose reduction, propranolol or a short benzodiazepine course — not another antipsychotic dose. Report any new abnormal movement before the next dose is given.

Escalation is a communication skill. Use SBAR: “Situation — this is the nurse on 4 East calling about Mr K in room 12; his temperature is 38.9 and he is agitated and confused. Background — he is thirty-four, admitted with PTSD and generalised anxiety, on sertraline increased to 150 mg yesterday, and he received tramadol at 14:00. Assessment — heart rate 128, blood pressure 168 over 96, diaphoretic, hyperreflexic with inducible ankle clonus. I am concerned about serotonin syndrome. Recommendation — I have held the sertraline and the tramadol, I need you to assess now, and I would like orders for intravenous fluids and a benzodiazepine.” Note the structure: identification, relevant history, objective findings, a stated clinical concern, and a specific ask.

Milieu, delegation and de-escalation

The therapeutic milieu is an intervention in its own right — the physical environment, the daily structure, the group programme and the relationships within it. For anxious and traumatised patients, predictability is the active ingredient: a posted schedule, consistent staff, honest advance notice of change, quiet spaces, and access to a comfort or sensory room. Group programming (psychoeducation, relaxation training, mindfulness, expressive therapies) does real work, but the nurse’s ordinary presence in the dayroom — visible, unhurried, approachable — is what patients most consistently name as helpful.

Delegation on a behavioural unit follows the same law as anywhere else: you may delegate a task, never the nursing process. Assistive personnel may obtain vital signs, perform environmental and belongings safety checks, conduct one-to-one observation and fifteen-minute rounds, accompany patients to activities, assist with hygiene and meals, record intake and output, and report observations back to you. They may not perform the initial or ongoing assessment, conduct suicide risk screening, provide patient education or counselling, triage a change in condition, initiate or terminate restraint, or evaluate whether an intervention worked. The most common real-world error is treating one-to-one observation as a low-skill assignment — brief the observer specifically on what to watch for and what to report immediately, and check in on them.

De-escalation always precedes restraint. Recognise early warning signs — pacing, clenched jaw, rising volume, refusal of usual routines. Give the person space (at least an arm’s length plus), maintain an open non-confrontational stance, keep one staff member as the sole communicator while others remain visible but back, lower your voice rather than raising it, use short sentences, name the emotion (“you look really frustrated”), and offer two genuine choices (“would you rather talk in the quiet room or walk with me to the end of the hall?”). Remove the audience. Do not corner the person and do not block your own exit. Seclusion and restraint are last-resort emergency interventions used only when there is imminent danger to the patient or others; they demand continuous monitoring of circulation, respiration, skin integrity, toileting, hydration and range of motion, and release at the earliest safe moment. Always use the least restrictive intervention that will keep everyone safe, and debrief with the patient and the team afterwards. Restraint and seclusion are never used as punishment, discipline or coercion, never for the convenience of staff, and never as a remedy for short staffing — if you cannot name the imminent danger, there is no indication.

Words worth knowing