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Eduovisual

Behavioral Health

Acute stress disorder and adjustment disorders

Clinical Overview and When to Suspect Acute Stress and Adjustment Disorders

Acute stress disorder (ASD): trauma-spectrum syndrome occurring 3 days to 1 month after exposure to actual or threatened death, serious injury, or sexual violence (directly experienced, witnessed, learned of in close other, or repeated work-related exposure as in first responders)

Adjustment disorder (AjD): emotional or behavioral symptoms in response to an identifiable non-life-threatening stressor, onset within 3 months, resolving within 6 months of the stressor (or its consequences) ending

PTSD: trauma-spectrum symptoms persisting >1 month — temporal pivot from ASD

— Patient presenting to primary care, ED, or postpartum/oncology clinic with new insomnia, irritability, tearfulness, or somatic complaints after a discrete event (MVC, assault, job loss, divorce, diagnosis of cancer, miscarriage, deployment, immigration)

— Functional decline disproportionate to the stressor severity, or out-of-proportion distress

— New suicidal ideation in the wake of a life event — always screen

— Workplace, school, or family role impairment in the weeks following a trigger

Board pearl: The stressor magnitude is the diagnostic gate — life-threatening or sexual-violence trauma routes you to ASD/PTSD; ordinary (even severe) life stressors route you to adjustment disorder, regardless of how distressed the patient appears.

Step 3 management: First office visit should establish the timeline of the stressor, screen for SI/HI with PHQ-9 + C-SSRS, assess substance use, and document functional impairment — these drive billing, disability paperwork, and the choice between watchful waiting, brief therapy, or referral.

Definitions (DSM-5-TR):
When to suspect on Step 3:
Core symptom domains (ASD — need ≥9 of 14 across 5 clusters): intrusion, negative mood, dissociation (derealization, amnesia), avoidance, arousal (hypervigilance, sleep, startle, irritability, concentration)
AjD subtypes: with depressed mood, anxiety, mixed anxiety/depression, disturbance of conduct, mixed emotional/conduct, unspecified
Solid White Background
Presentation Patterns and Key History

Stressor characterization: what, when, ongoing vs. resolved, anticipated (e.g., terminal diagnosis with progressive decline = ongoing stressor)

Symptom onset relative to stressor: AjD requires onset within 3 months; ASD within 1 month and lasting 3 days–1 month

Functional impact: work attendance, parenting, ADLs, relationships

Prior psychiatric history: preexisting MDD, PTSD, bipolar, personality disorder — recurrence vs. new diagnosis matters

Substance use: new or escalated alcohol, cannabis, benzodiazepines, opioids — often the presenting complaint

Suicide and homicide risk: ideation, plan, intent, access to firearms (lethal-means counseling)

Social supports, housing, finances, legal stressors, IPV screen — particularly for AjD, where psychosocial intervention is first-line

Sleep, appetite, concentration, energy — distinguishes from MDD

— Active SI with plan → emergency evaluation

— Psychotic features → not AjD/ASD; consider brief psychotic disorder or MDD with psychosis

— Symptoms >6 months after stressor resolves → reclassify (PTSD, MDD, persistent depressive disorder)

Key distinction: Dissociation (derealization, depersonalization, dissociative amnesia) is a hallmark of ASD and is not part of adjustment disorder criteria. If a stem highlights "felt like the world wasn't real," lean ASD.

Board pearl: Ask explicitly about bereavement — uncomplicated grief is a normal reaction and is not AjD; however, AjD can be diagnosed if grief reactions exceed cultural/religious expectations or cause marked impairment beyond expected.

Classic ASD vignette: A 32-year-old woman 2 weeks after a high-speed MVC reports nightmares, avoidance of driving, feeling "outside her body," exaggerated startle when a door slams, and inability to recall the moments before impact. Symptoms began day 4 post-event.
Classic AjD vignette: A 58-year-old man laid off 6 weeks ago presents with low mood, poor sleep, tearfulness when discussing finances, but no anhedonia, no SI, no neurovegetative criteria for MDD. He still enjoys grandchildren and exercises.
Targeted history elements:
Red flags that change management:
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Physical Exam Findings and Mental Status Assessment

— Vital signs may show resting tachycardia, mild hypertension from sympathetic arousal — should not be attributed to anxiety alone without workup if persistent

— Inspect for signs of self-harm (wrist/forearm cuts, healed scars), bruising patterns suggestive of IPV or assault

— Neurologic screen if MVC or assault: cranial nerves, gait, focal deficits — rule out occult TBI

— Thyroid exam (goiter, tremor) — hyperthyroidism mimics arousal symptoms

Appearance/behavior: disheveled, psychomotor agitation or retardation, hypervigilant scanning of room

Speech: may be soft, slowed, or pressured if anxious

Mood/affect: anxious, sad, irritable, constricted; affect congruent with reported mood

Thought process: generally linear; circumstantiality around the trauma

Thought content: intrusive recollections, no delusions; assess SI/HI

Perception: flashbacks (re-experiencing), depersonalization/derealization in ASD; true hallucinations argue against AjD/ASD

Cognition: orientation intact; concentration often impaired; dissociative amnesia for parts of the traumatic event in ASD

Insight/judgment: typically preserved — patients recognize their distress is linked to the stressor

PHQ-9 for depressive symptom burden

GAD-7 for anxiety

PCL-5 if trauma is the stressor (PTSD checklist; useful baseline)

AUDIT-C and drug screening

Columbia Suicide Severity Rating Scale (C-SSRS)

Board pearl: Hypervigilance and exaggerated startle are arousal criteria for ASD/PTSD but are not required for adjustment disorder. A patient who startles at a slamming door 2 weeks post-assault is signaling ASD.

Step 3 management: Document a functional impairment statement ("unable to return to work as a delivery driver due to avoidance of driving") — this anchors short-term disability decisions and justifies therapy referral under insurance.

General medical exam: typically unremarkable; purpose is to exclude medical mimics and document trauma sequelae
Mental Status Examination (MSE):
Standardized tools to document at the visit:
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Diagnostic Workup — Initial Labs and Medical Rule-Outs

CBC, CMP — anemia, hyponatremia, hepatic/renal dysfunction

TSH (± free T4) — hyperthyroidism mimics arousal; hypothyroidism mimics adjustment-with-depressed-mood

Glucose / HbA1c — hypoglycemia episodes mimic panic; new diabetes diagnosis is itself a stressor

Vitamin B12, folate, vitamin D if mood symptoms predominate, especially in elderly

Urine toxicology — cocaine, methamphetamine, cannabis, PCP can produce dissociation and hyperarousal

Pregnancy test (β-hCG) in reproductive-age women — alters drug choice and is occasionally itself the stressor

HIV, RPR if risk factors and neuropsychiatric symptoms present

— Baseline 12-lead ECG before starting SSRIs (especially citalopram, escitalopram) or any QT-prolonging psychotropic, particularly in elderly, cardiac history, or polypharmacy

— Rule out arrhythmia as a driver of palpitation/panic-like complaints

Non-contrast head CT if recent head trauma, focal neuro findings, anticoagulation, or altered mental status — not routine

MRI brain reserved for atypical presentations (first-episode psychosis-like features, focal deficits, age >50 with new psychiatric symptoms)

— No validated biomarker for ASD or AjD

— Cortisol, urinary catecholamines only if pheochromocytoma or Cushing suspected

Key distinction: A patient with paroxysmal hypertension, headache, diaphoresis, and tachycardia attributed to "panic from a stressor" deserves plasma metanephrines before psychiatric labeling — pheochromocytoma is the classic miss.

Board pearl: Always check TSH and a urine drug screen before committing to AjD or ASD on a Step 3 vignette — these two tests have the highest yield for unmasking a medical mimic and are frequently the "next best step."

Step 3 management: Document medical workup completion in the chart — this protects against the boards-favorite pitfall of premature psychiatric closure and supports later insurance authorization for psychotherapy.

DSM-5-TR diagnosis is clinical — no lab confirms ASD or AjD. The workup exists to exclude medical and substance mimics and to baseline before pharmacotherapy.
First-tier labs at the index visit:
ECG:
Imaging:
Biomarkers / specialty testing:
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Diagnostic Workup — Confirmatory Clinical Criteria and Severity Tools

A: Exposure to actual/threatened death, serious injury, or sexual violence (direct, witnessed, close-other, or repeated occupational exposure)

B: ≥9 symptoms across 5 clusters (intrusion, negative mood, dissociation, avoidance, arousal)

C: Duration 3 days to 1 month post-trauma

D: Clinically significant distress or impairment

E: Not due to substance, medication, medical condition, or brief psychotic disorder

A: Emotional/behavioral symptoms in response to identifiable stressor within 3 months of onset

B: Symptoms are out of proportion to stressor severity (accounting for culture/context) OR cause significant impairment

C: Does not meet criteria for another mental disorder and is not an exacerbation of a preexisting one

D: Not normal bereavement

E: Resolves within 6 months after stressor (or its consequences) ends; otherwise reclassify

Acute (<6 months) vs persistent/chronic (≥6 months) — chronic AjD requires the stressor or its consequences to be ongoing

— ASD has no specifiers; if symptoms persist beyond 1 month, rediagnose as PTSD

PCL-5 (PTSD Checklist for DSM-5): 20 items, 0–80; ≥31–33 suggests probable PTSD/ASD

CAPS-5 (Clinician-Administered PTSD Scale): gold-standard structured interview, used in specialty settings

Adjustment Disorder New Module (ADNM-20): validated AjD-specific scale increasingly used in research

Impact of Event Scale-Revised (IES-R) for trauma symptom tracking

— Rule out MDD (need 5 of 9 SIGECAPS criteria for ≥2 weeks)

— Rule out GAD (≥6 months of excessive worry, not tied to discrete stressor)

— Rule out panic disorder (recurrent unexpected panic attacks)

— Rule out substance/medication-induced mood or anxiety disorder

Board pearl: The 3-day minimum for ASD prevents pathologizing the first 72 hours of normal acute stress reaction — a vignette at 48 hours post-event with intrusive thoughts is not ASD.

Key distinction: If a stressor is chronic (caring for a parent with dementia, ongoing job harassment), AjD can be "persistent" — duration alone doesn't disqualify it as long as the stressor (or its consequences) continues.

ASD DSM-5-TR criteria (must satisfy all):
Adjustment disorder DSM-5-TR criteria:
Specifier traps:
Confirmatory rating instruments:
Differential checkpoints during diagnosis:
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Risk Stratification and First-Line Management Logic

First-line: psychotherapy, specifically brief problem-solving therapy, supportive therapy, or short-course CBT (6–12 sessions)

— Pharmacotherapy is adjunctive, not first-line — reserved for prominent insomnia, severe anxiety interfering with therapy engagement, or comorbid symptoms

— Reassess at 4–6 weeks; if symptoms persist or worsen, reconsider diagnosis (likely MDD or GAD)

First-line: trauma-focused CBT (TF-CBT), typically 5 sessions starting ≥2 weeks post-trauma — strongest evidence for preventing progression to PTSD

Avoid routine single-session psychological debriefing (e.g., Critical Incident Stress Debriefing) — may worsen outcomes

— Pharmacotherapy: short-term targeted symptom relief (sleep, severe arousal); SSRIs are not first-line in ASD but become first-line if symptoms persist >1 month (i.e., transition to PTSD treatment)

Avoid benzodiazepines — associated with worse PTSD outcomes and dependence risk

— Female sex, prior trauma history, peritraumatic dissociation, low social support, ongoing threat, TBI, female assault survivors, refugees

— High PCL-5 score at 2 weeks post-event

— AjD has a notably elevated suicide risk, especially in adolescents and young adults, and in those with conduct subtype

— Use C-SSRS; safety plan with lethal-means counseling (firearm storage, medication lock boxes) at every visit with elevated risk

— Brief intervention: Safety Planning Intervention (Stanley-Brown) + follow-up call within 48 hours

— Outpatient for nearly all; partial hospitalization if functional collapse without imminent danger; inpatient only for active suicidality, psychosis, or inability to maintain safety

Step 3 management: For an ASD patient at 2 weeks post-MVC with insomnia and intrusive memories, the next best step is referral for trauma-focused CBT, not an SSRI prescription. Reserve pharmacotherapy for targeted symptoms or post-1-month persistence.

Board pearl: Benzodiazepines after acute trauma worsen long-term PTSD risk — this is a recurring Step 3 distractor.

Stepwise treatment algorithm — adjustment disorder:
Stepwise treatment algorithm — acute stress disorder:
Risk stratification for progression to PTSD (ASD → PTSD ~50%):
Suicide risk stratification (both disorders):
Setting of care:
Solid White Background
Pharmacotherapy — Targeted Agents and Dosing

Trazodone 25–100 mg qhs — preferred; non-habit-forming, sedating via 5-HT2A and H1 antagonism; watch for orthostasis, priapism (rare)

Prazosin 1–10 mg qhs — α1 antagonist; particularly useful for trauma-related nightmares; titrate slowly to avoid first-dose hypotension

Mirtazapine 7.5–15 mg qhs if comorbid weight loss/poor appetite

Avoid chronic z-drugs (zolpidem) and benzodiazepines; if used, limit to <2 weeks

SSRIs (sertraline 25–50 mg start, escitalopram 5–10 mg) — onset 2–6 weeks; counsel on initial activation, GI symptoms, sexual dysfunction, and black-box warning for suicidality in <25 yo

Buspirone 5–10 mg TID for anxiety without sedation, useful when benzodiazepine avoidance is critical

Hydroxyzine 25–50 mg PRN for situational anxiety — non-addictive antihistamine; caution QT, anticholinergic effects in elderly

No FDA-approved pharmacotherapy for ASD; sertraline and paroxetine are FDA-approved for PTSD and become appropriate if symptoms persist >1 month

Propranolol for secondary prevention of PTSD is not recommended outside research — negative trials

Hydrocortisone within hours of trauma has shown signal in ICU patients but is not standard

— SSRI/SNRI suicidality warning in patients <25

Serotonin syndrome risk with tramadol, linezolid, triptans, MAOIs

Citalopram >20 mg in patients >60 is contraindicated (QT prolongation)

Discontinuation syndrome with paroxetine, venlafaxine — taper over weeks

— Avoid benzodiazepines in any patient with SUD history

— Address alcohol use disorder concurrently (naltrexone, acamprosate)

Board pearl: Prazosin for trauma-related nightmares is the classic Step 3 answer in a patient 6 weeks post-combat exposure who reports recurrent vivid nightmares despite sleep hygiene.

Step 3 management: Document informed consent for SSRI use, including the black-box suicidality warning, in patients under 25 — boards reward explicit charting.

General principle: Medication is adjunctive in AjD/ASD; psychotherapy is primary. Use the lowest effective dose, shortest duration, and re-evaluate at 4–6 weeks.
For prominent insomnia (most common pharmacologic indication):
For severe anxiety/arousal in AjD with significant impairment:
For ASD specifically:
Black-box and key safety items:
Substance use considerations:
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Non-Pharmacologic Therapies and Procedural-Equivalent Interventions

— 5–12 sessions; components include psychoeducation, breathing retraining, in vivo and imaginal exposure, cognitive restructuring

— Best evidence for preventing PTSD progression; NNT ~4 for symptomatic ASD

— Begin ≥2 weeks post-trauma to allow natural recovery in some

— Effective for trauma symptoms; equivalent to TF-CBT in meta-analyses

— Useful when patients decline exposure protocols

— 4–8 sessions; identifies stressor, generates solutions, implements action plan

— Particularly effective for occupational, financial, relational stressors

— Useful for grief-related AjD, role transitions, interpersonal conflict

— Validating emotion, normalizing reaction, mobilizing social support

— Survivor groups for assault, bereavement, MVC; reduce isolation

— Avoid mandatory single-session debriefing post-disaster

— Connect to employee assistance program (EAP), legal aid, financial counseling, housing services

Short-term disability paperwork when impairment prevents work; document objective findings

— Faith/community resources when culturally aligned

— Internet-delivered CBT (iCBT) — effective for AjD, expands access; appropriate when geography or stigma limits in-person care

— VA's PE Coach, CPT Coach apps support veterans

CCS pearl: When managing a CCS case of acute stress symptoms post-MVC, order psychotherapy referral, screen PHQ-9/PCL-5, prescribe prazosin for nightmares only if present, schedule follow-up in 2 weeks, and avoid alprazolam — selecting a benzodiazepine in this scenario costs points.

Board pearl: Single-session psychological debriefing immediately after trauma is contraindicated — paradoxically increases PTSD risk and is a classic wrong-answer trap.

Trauma-focused CBT (TF-CBT) for ASD:
Prolonged exposure (PE) therapy: Manualized exposure-based protocol; first-line for PTSD if ASD persists
Eye Movement Desensitization and Reprocessing (EMDR):
Brief problem-solving therapy (BPST) for AjD:
Supportive psychotherapy and interpersonal therapy (IPT):
Mindfulness-based stress reduction (MBSR), behavioral activation, sleep hygiene/CBT-I: evidence-supported adjuncts
Group and peer interventions:
Health-system and social interventions (essential in AjD):
Telehealth and digital therapeutics:
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Special Populations — Elderly and Renal/Hepatic Impairment

— Common stressors: bereavement, retirement, relocation to assisted living, new medical diagnoses, caregiver burden, elder abuse

Differential broadens: delirium, major neurocognitive disorder with behavioral disturbance, hypothyroidism, B12 deficiency, depression with cognitive features ("pseudodementia"), medication side effects (β-blockers, steroids, benzodiazepines)

— Use Geriatric Depression Scale (GDS-15) alongside PHQ-9

— Screen for elder mistreatment with EASI or similar; mandatory reporting in most states

Start low, go slow: sertraline 12.5–25 mg, escitalopram 5 mg

Citalopram capped at 20 mg/day (QTc risk)

Avoid benzodiazepines (Beers criteria — falls, delirium, cognitive decline)

Avoid first-generation antihistamines (diphenhydramine, hydroxyzine high-dose) — anticholinergic burden

Trazodone at low dose (25 mg) acceptable for sleep but watch orthostasis

Mirtazapine 7.5 mg useful when weight loss and insomnia co-occur

— Monitor for SIADH/hyponatremia within 2–4 weeks of starting SSRI — check basic metabolic panel

Sertraline, citalopram, escitalopram — minimal renal dose adjustment; preferred

Venlafaxine, duloxetine — reduce dose if CrCl <30; duloxetine avoid if CrCl <30

Paroxetine — reduce dose in severe renal impairment

Gabapentin/pregabalin (if used adjunctively) — substantial renal adjustment required

— Most SSRIs are hepatically metabolized; reduce dose by ~50% in moderate cirrhosis

Avoid duloxetine in any chronic liver disease and in heavy alcohol use

Sertraline is generally preferred; monitor LFTs at baseline and 4–6 weeks

— SSRIs + NSAIDs/anticoagulants → GI bleeding risk; consider PPI co-prescription if combined

— Fluoxetine, paroxetine are potent CYP2D6 inhibitors — interact with tamoxifen, codeine, tramadol, metoprolol

Board pearl: In a 78-year-old woman with new depressive symptoms 6 weeks after her husband's death, before diagnosing AjD with depressed mood, check TSH, B12, and basic metabolic panel and review medications — pseudodementia and medication-induced mood symptoms are common.

Geriatric considerations (≥65 years):
Pharmacologic adjustments in elderly:
Renal impairment:
Hepatic impairment:
Polypharmacy and drug interactions:
Solid White Background
Special Populations — Pregnancy, Pediatrics, and Veterans

— Stressors: pregnancy loss, NICU admission, traumatic delivery (a Criterion A event → can produce postpartum ASD/PTSD), unexpected diagnosis, IPV (increased in pregnancy)

Screen with Edinburgh Postnatal Depression Scale (EPDS) at prenatal and postpartum visits per ACOG/USPSTF

First-line: psychotherapy (CBT, IPT) — avoids fetal exposure

If pharmacotherapy needed: sertraline is preferred SSRI in pregnancy and lactation (lowest milk transfer, extensive safety data)

Avoid paroxetine in first trimester (cardiac malformation signal, FDA Category D historically)

Avoid benzodiazepines in third trimester (neonatal sedation, withdrawal, floppy infant)

— Discuss persistent pulmonary hypertension of the newborn (PPHN) small absolute risk with late-pregnancy SSRI exposure; benefits typically outweigh

— AjD is among the most common psychiatric diagnoses in adolescents; often presents with conduct disturbance (truancy, fighting, substance experimentation)

— Stressors: parental divorce, school transitions, bullying, chronic illness diagnosis, LGBTQ+ identity stressors

First-line: psychotherapy — CBT, family-based interventions, school-based counseling

— If SSRI needed: fluoxetine (FDA-approved age ≥8 for depression, ≥7 for OCD) or sertraline; black-box suicidality warning — weekly visits for 4 weeks, then biweekly

Mandatory reporting of suspected child abuse precipitating the adjustment reaction

— Screen for non-suicidal self-injury (NSSI) and SI explicitly

— Combat trauma, military sexual trauma (MST), moral injury

VA/DoD guidelines emphasize TF-CBT, PE, CPT, and EMDR as first-line

— Connect to VA mental health services; document service connection for benefits

— Higher suicide rates — lethal means counseling regarding firearms is essential

— Premigration trauma, ongoing acculturation stress, immigration status uncertainty

— Use cultural formulation interview; engage interpreters; consider somatic presentations (chest pain, headaches) as primary

Board pearl: Sertraline is the SSRI of choice in pregnancy and lactation for trauma- and adjustment-related disorders requiring pharmacotherapy.

Key distinction: In adolescents, AjD with conduct subtype often presents as new behavioral problems — don't reflexively label as oppositional defiant disorder without exploring the precipitating stressor.

Pregnancy and postpartum:
Pediatrics and adolescents:
Veterans and active-duty military:
Refugees and immigrants:
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Complications and Adverse Outcomes

ASD → PTSD in approximately 50% of cases without treatment; TF-CBT reduces this substantially

AjD → MDD or persistent depressive disorder if stressor unresolved or maladaptive coping persists

— AjD can evolve into GAD when worry generalizes beyond original stressor

— AjD is associated with disproportionately high suicide attempt rates, particularly among adolescents and young adults — comparable to or exceeding MDD in some cohorts due to acuity and impulsivity

— ASD with dissociation predicts higher self-harm risk

— Screen at every visit with C-SSRS; reassess after any change in stressor or treatment

— Self-medication with alcohol, cannabis, benzodiazepines, opioids — particularly common in ASD

— Screen with AUDIT-C, DAST-10 at baseline and follow-up

— Work absenteeism, presenteeism, job loss, academic failure

— Relationship dissolution, parenting impairment

— Disability claims — document objectively to support legitimate claims and avoid secondary gain confounds

— Worsened glycemic control, hypertension, asthma exacerbations from chronic stress

— New or exacerbated chronic pain, IBS, tension/migraine headaches

Takotsubo cardiomyopathy ("broken heart syndrome") after acute emotional trauma — postmenopausal women classic

Benzodiazepine dependence if prescribed liberally

SSRI discontinuation syndrome (dizziness, electric-shock sensations, flu-like symptoms) — taper paroxetine and venlafaxine over weeks

Serotonin syndrome from drug combinations

Sleep medication misuse — z-drug parasomnias, complex sleep behaviors

— Persistent insomnia is an independent predictor of PTSD progression and depression — treat early with CBT-I

Board pearl: A patient with apparent AjD whose symptoms persist or worsen at 6 months after stressor resolution has, by definition, another diagnosis (MDD, PTSD, GAD) — re-evaluate rather than continue AjD coding.

Step 3 management: At every follow-up, reassess the four pivots: symptom trajectory, suicidality, substance use, and functional status — these drive escalation decisions.

Progression to chronic psychiatric illness:
Suicidality and self-harm:
Substance use disorders:
Functional and occupational decline:
Medical complications and somatization:
Iatrogenic complications:
Sleep architecture disruption:
Solid White Background
When to Escalate Care — Referral, Hospitalization, and Consultation

Active suicidal ideation with plan, intent, or means — especially with access to firearms

— Homicidal ideation toward identifiable target — duty to warn (Tarasoff) in most US jurisdictions

— Psychotic symptoms (suggests another diagnosis)

— Severe self-neglect (not eating, not drinking, not taking essential medications)

— Catatonia, severe dissociation precluding safety

— Imminent danger to self or others without safer disposition

— Failure of intensive outpatient management

— Inability to maintain safety with available support

Involuntary hold criteria (state-specific, typically 72-hour) — danger to self, danger to others, or grave disability

— Significant functional impairment without imminent danger

— Need for daily therapeutic structure

— Step-down from inpatient

— Diagnostic uncertainty (AjD vs MDD vs PTSD vs bipolar)

— Inadequate response to first-line treatment at 6–8 weeks

— Need for second-line or combination pharmacotherapy

— Comorbid substance use disorder requiring specialized care

— High-risk medication use (lithium, MAOIs, clozapine — unlikely here but applicable if comorbidity)

— Persistent ASD symptoms approaching 1-month mark

— Complex trauma history (childhood abuse, repeated trauma)

— Military sexual trauma — consider VA specialty programs

— PCP + care manager + consulting psychiatrist; proven to improve depression and anxiety outcomes in primary care; appropriate framework for AjD management

— Measurement-based care with PHQ-9/GAD-7 at every visit

CCS pearl: In a CCS case where a patient with adjustment disorder develops new suicidal ideation with a plan to overdose on stockpiled medications, your sequence is: assess safety → remove access to means (collect medications) → 1:1 observation → psychiatric consultation → inpatient admission — do not discharge with outpatient follow-up.

Board pearl: Tarasoff duty to warn/protect applies when there is a specific, identifiable victim — informing intended victim and/or police, not just the patient, may be required.

Indications for emergency psychiatric evaluation:
Indications for inpatient psychiatric admission:
Indications for partial hospitalization (PHP) or intensive outpatient (IOP):
Indications for psychiatry referral from primary care:
Indications for trauma specialist referral:
Collaborative care model in primary care:
Solid White Background
Key Differentials — Within the Trauma/Stressor-Related Spectrum

— Same Criterion A traumatic event as ASD; symptom duration >1 month

— Symptom clusters: intrusion, avoidance, negative alterations in cognitions/mood, alterations in arousal/reactivity

— ASD that persists past 1 month is reclassified as PTSD — same patient, different label

— Symptoms within first 3 days after trauma — by DSM-5-TR, ASD requires ≥3 days

— Self-limited in majority; provide psychoeducation, support, watchful waiting

— Stressor magnitude — life-threatening/sexual violence routes to ASD; non-Criterion A stressors route to AjD

— Dissociative symptoms favor ASD

— Death of a close other ≥12 months ago (≥6 months in children)

— Persistent intense yearning, preoccupation, identity disruption, emotional numbness

— Distinct from AjD — bereavement-specific and duration-defined

— Used when symptoms cause distress but don't meet full criteria for any specific disorder

— E.g., ataque de nervios in culture-bound contexts

— Pediatric trauma-spectrum diagnoses related to insufficient caregiving in early childhood

— Not typical Step 3 adult vignettes but appear in pediatric/CPS contexts

— Psychotic symptoms (delusions, hallucinations, disorganized speech) lasting ≥1 day but <1 month after a markedly stressful event

— Full return to premorbid functioning expected

— Psychosis distinguishes from ASD/AjD

Key distinction: Stressor severity is the gateway — Criterion A (death/serious injury/sexual violence) sorts patients into ASD/PTSD; everything else with significant impairment sorts into AjD.

Board pearl: A patient at 5 weeks post-trauma with full intrusion, avoidance, and arousal symptoms is PTSD, not ASD — the 1-month mark is the inflection point even if the clinical picture looks identical.

Posttraumatic stress disorder (PTSD):
Acute stress reaction (ICD term, normal response):
Adjustment disorder with anxiety vs ASD:
Prolonged grief disorder (DSM-5-TR, 2022 addition):
Other specified/unspecified trauma- and stressor-related disorder:
Reactive attachment disorder / disinhibited social engagement disorder:
Brief psychotic disorder with marked stressor:
Solid White Background
Key Differentials — Other-Category Mimics

— ≥5 of 9 SIGECAPS symptoms for ≥2 weeks, including depressed mood or anhedonia

— Can be precipitated by a stressor — if full MDD criteria met, diagnose MDD, not AjD

— Anhedonia, neurovegetative symptoms, psychomotor changes favor MDD

— Excessive worry about multiple domains for ≥6 months

— Not tied to a discrete identifiable stressor

— Chronicity differentiates from AjD

— Recurrent unexpected panic attacks with ≥1 month of anticipatory worry or behavioral change

— Discrete attacks vs sustained AjD distress

— Each has specific triggers/themes distinct from a recent life stressor

— Always screen for prior manic/hypomanic episodes before starting an SSRI — antidepressant monotherapy can induce mania

— Use MDQ or CIDI-3.0 screening

— Stimulants, cannabis withdrawal, alcohol withdrawal, corticosteroids, interferon, isotretinoin, β-blockers, varenicline, levetiracetam

— Temporal relationship to substance/medication use confirms

Hyperthyroidism — tachycardia, tremor, weight loss, anxiety

Pheochromocytoma — paroxysmal HTN, headache, diaphoresis, palpitations

Cushing syndrome — mood lability, depression, anxiety

Hypoglycemia — palpitations, diaphoresis, anxiety

Cardiac arrhythmia — palpitations mimic panic

Pulmonary embolism — acute dyspnea/anxiety in postoperative or postpartum patient

Anti-NMDA receptor encephalitis — young woman with psychiatric symptoms + seizures + autonomic instability

Delirium — fluctuating attention, especially in elderly or hospitalized

— Borderline personality disorder — chronic affective instability, identity disturbance, fear of abandonment; stressor may unmask pattern but baseline pathology predates

Board pearl: Always rule out bipolar disorder before prescribing an SSRI for anxious or depressive symptoms in AjD — antidepressant-induced mania is a recurring Step 3 stem and triggers a different treatment pathway (mood stabilizer or second-generation antipsychotic).

Key distinction: Symptom duration and the presence/absence of a discrete identifiable stressor are the two diagnostic axes that resolve most differential confusion.

Major depressive disorder (MDD):
Generalized anxiety disorder (GAD):
Panic disorder:
Social anxiety, specific phobia, OCD:
Bipolar disorder (mixed or depressive episode):
Substance/medication-induced mood or anxiety disorder:
Medical mimics:
Personality disorders:
Solid White Background
Secondary Prevention, Discharge Planning, and Long-Term Care

— If SSRI initiated for AjD-with-depressed-mood or persistent symptoms: 30-day supply with refill, follow-up scheduled before prescription runs out

— If prazosin for trauma nightmares: titration schedule written explicitly, BP check at 1–2 weeks

Avoid discharge benzodiazepine prescriptions in trauma/stressor presentations; if absolutely needed, ≤7-day supply, no refills

Naloxone co-prescription if any opioid prescription or known opioid use disorder

— Document Stanley-Brown Safety Plan in the chart

— Counsel on firearm storage (offsite storage, lock boxes, trigger locks) — single highest-leverage suicide prevention intervention

— Medication lockup; limit acetaminophen and TCA supplies in high-risk patients

Sleep hygiene and CBT-I principles — bedtime regularity, limit caffeine after noon, no screens 1 hour before bed

Exercise: ≥150 min/week moderate aerobic — antidepressant-equivalent effect in mild cases

Limit alcohol to <1 drink/day women, <2 drinks/day men (or abstinence if substance use concerns)

Cannabis counseling — frequent use associated with worse anxiety and PTSD outcomes

— Social re-engagement, return-to-work planning, gradual exposure to avoided contexts

— For ASD: complete the 5-session TF-CBT course; reassess at 1 month with PCL-5

— For AjD: schedule check at 4–6 weeks to confirm trajectory; if persistent past stressor resolution by >6 months, reformulate diagnosis

— Stress impairs immune response; ensure routine immunizations are current

— Resume cancer screening, BP, lipid, HbA1c monitoring deferred during acute distress

FMLA paperwork, short-term disability forms — provide objective findings, functional limitations, and expected duration

— Avoid documentation that inadvertently harms patient (e.g., overly broad "permanent disability")

Step 3 management: Every discharge from an acute stress evaluation should include: (1) safety plan documented, (2) lethal-means counseling, (3) follow-up appointment within 1–2 weeks, (4) clear return precautions, (5) crisis line (988) provided in writing.

Board pearl: 988 Suicide and Crisis Lifeline is the US national number — give it in writing to every patient at any elevated risk.

Discharge medications and prescriptions:
Lethal-means counseling and safety planning:
Behavioral and lifestyle reinforcement:
Secondary prevention of progression:
Vaccination and preventive care during recovery:
Documentation for legal/occupational purposes:
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Follow-Up, Monitoring Parameters, and Rehabilitation

Initial visit → 1–2 weeks for safety reassessment, especially if SSRI started or high-risk

Weeks 2–4: assess SSRI response, side effects, suicidality (peak risk early in treatment)

Weeks 4–6: reassess diagnostic accuracy; if no improvement, reconsider AjD vs MDD/GAD/PTSD

Weeks 8–12: evaluate for full remission; AjD typically resolves within 6 months of stressor end

Maintain measurement-based care with PHQ-9, GAD-7, PCL-5 at each visit

2–4 weeks post-initiation: check sodium (SIADH/hyponatremia risk, especially elderly)

— Assess suicidality at each visit, particularly in patients <25 (black-box warning)

Bleeding risk if on antiplatelet/anticoagulant or NSAIDs — consider PPI

Sexual side effects — proactively ask; consider bupropion augmentation or switch

Weight, BP, glucose if on mirtazapine or atypical antipsychotic adjunct

ECG if QT-prolonging combinations or doses

Orthostatic BP at 1–2 weeks; titrate by 1 mg increments

— Symptom diary for nightmare frequency

— Track session attendance, homework completion (in CBT), exposure hierarchy progress

— Communicate with therapist (with consent) — collaborative care improves outcomes

— Graded return-to-work plan — half-days, modified duties, then full duty

— Occupational therapy referral if cognitive or functional deficits persist

— School re-entry plans for adolescents with 504 plans or IEPs as needed

6-month checkpoint: AjD should be resolved or close to it; if not, re-diagnose

12-month checkpoint: assess for recurrence with new stressors; build coping toolkit

— After 6–12 months of stability in mild AjD; longer (1–2 years or indefinite) for PTSD that emerged from ASD

— Taper over 4 weeks minimum; paroxetine and venlafaxine require longer tapers

Board pearl: The highest suicidality risk on SSRIs is in the first 1–4 weeks of treatment in patients <25 — schedule a weekly check-in for the first month and document each contact.

Step 3 management: Use measurement-based care — repeat PHQ-9 every 2–4 weeks; a <50% reduction by 6–8 weeks signals need for dose adjustment, switch, or augmentation.

Follow-up cadence:
Monitoring parameters on SSRIs:
Monitoring on prazosin:
Therapy engagement and outcomes:
Return-to-work and functional rehabilitation:
Long-term reassessment:
When to taper SSRIs:
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Ethical, Legal, and Patient Safety Considerations

— Maintain confidentiality except when mandatory reporting applies: child abuse, elder abuse, dependent-adult abuse, certain communicable diseases, gunshot/stab wounds (state-dependent)

Duty to warn/protect (Tarasoff) when an identifiable third party is at risk — notify intended victim and/or law enforcement; document reasoning

42 CFR Part 2 governs heightened protection of substance use treatment records — separate consent required for disclosure

— Discuss black-box warning for SSRI/SNRI suicidality in patients <25 and document

— Discuss SSRI bleeding risk if anticoagulated

Risks/benefits/alternatives/no treatment framework documented

— Pregnancy: shared decision-making on SSRI in pregnancy and lactation, weighing maternal mental illness risks against medication risks

— Patients with AjD/ASD generally retain capacity for medical decisions

— Acute dissociation, severe suicidality, or psychotic features may transiently impair capacity — formal capacity assessment with documentation if refusing essential care

— State-specific criteria — typically danger to self, danger to others, or grave disability

— Follow least restrictive alternative principle

— Right to refuse medications retained in most states absent emergency or court order

Suspected child abuse as precipitating stressor — report to child protective services

Intimate partner violence — not mandatorily reportable in most states for competent adults; offer resources, safety planning

Elder/dependent adult abuse — mandatory in most states

Highest-risk window for suicide is the 30 days post-ED or post-discharge from inpatient psychiatry

— Ensure warm handoff to outpatient provider, follow-up within 7 days, crisis resources provided

Caring contacts (postcards, calls) reduce post-discharge suicide attempts

— Provide accurate, minimum-necessary information for FMLA, ADA accommodations

— Avoid documenting unverifiable claims; do not falsify for secondary gain

— Use trauma-informed care principles; avoid pathologizing normal responses

— Be alert to disparities in trauma exposure (refugees, low-income, racial/ethnic minorities, LGBTQ+) and tailor care accordingly

Step 3 management: The post-ED discharge phone call within 24–48 hours for any patient with stressor-related crisis presentation is a Step 3 favorite — it concretely reduces re-presentation and suicide attempts and reflects systems-level safety thinking.

Board pearl: Always document the Tarasoff analysis when homicidal ideation is voiced — even if no warning is issued, the reasoning must be in the chart.

Confidentiality and its limits:
Informed consent for psychotropics:
Capacity assessment:
Involuntary commitment:
Mandatory reporting in stressor evaluations:
Transition-of-care safety:
Workplace and disability documentation:
Equity and stigma:
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High-Yield Associations and Rapid-Fire Clinical Facts

<3 days post-trauma: normal acute stress reaction

3 days–1 month post-trauma: acute stress disorder

>1 month post-trauma: PTSD

AjD onset: within 3 months of stressor

AjD resolution: within 6 months of stressor end

Criterion A trauma (death/serious injury/sexual violence) → ASD/PTSD pathway

Any other significant stressor → AjD pathway

ASD: trauma-focused CBT, starting ≥2 weeks post-trauma

AjD: brief problem-solving or supportive psychotherapy

Pharmacotherapy is adjunctive in both

Trauma nightmares → prazosin

Persistent PTSD symptoms → sertraline or paroxetine (FDA-approved)

Benzodiazepines post-trauma — worsen PTSD outcomes

Single-session psychological debriefing — increases PTSD risk

Paroxetine in pregnancy first trimester

Citalopram >20 mg in elderly (QTc)

Pregnancy/lactation: sertraline

Elderly: sertraline or escitalopram at low dose

Trauma nightmares: prazosin

Insomnia in trauma: trazodone or prazosin (never long-term benzodiazepines)

Takotsubo cardiomyopathy ↔ acute emotional stressor in postmenopausal women

Brief psychotic disorder with marked stressor ↔ <1-month psychotic episode post-stressor

AjD with conduct disturbance ↔ adolescent behavior changes post-divorce/move

Postpartum PTSD ↔ traumatic delivery, NICU admission

MST and combat trauma ↔ veterans with trauma symptoms

— Female sex, prior trauma, peritraumatic dissociation, low social support, ongoing threat, TBI

AjD has surprisingly high suicide attempt rates, especially in adolescents — never dismiss as "minor"

— 988 Suicide and Crisis Lifeline is the standard US number

Board pearl: Two reflex-level rules: never prescribe a benzodiazepine after acute trauma, and never order single-session debriefing — both are recurring Step 3 traps and represent the most common wrong answers.

Key distinction: The first decision tree node is Criterion A trauma — yes or no — getting this right routes you to the correct disorder and treatment in ~90% of vignettes.

Timing pillars:
Stressor type pillar:
First-line treatment cheat sheet:
Drugs to avoid:
Drugs of choice in special populations:
Key associations:
Risk multipliers for PTSD progression from ASD:
Suicide risk note:
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Board Question Stem Patterns

— "A 28-year-old man, 3 weeks after surviving a building collapse, reports nightmares, avoidance, hypervigilance, and feeling 'unreal.'" → ASD (within 1 month)

— Same vignette at 6 weeksPTSD

— Same vignette at 48 hoursnormal acute stress reaction, supportive care only

— Patient with low mood after job loss, sleep disturbance, tearfulness, but no anhedonia, no neurovegetative clusterAjD with depressed mood

— Patient with 5+ SIGECAPS symptoms for ≥2 weeks → MDD, treat as MDD regardless of stressor

— ASD patient post-MVC; options include alprazolam, sertraline, prazosin, lorazepam, TF-CBT referral

Correct: TF-CBT referral (and prazosin only if specifically targeting nightmares)

Trap: alprazolam — worsens long-term PTSD

— Disaster mass-casualty scenario asking about the optimal next step for survivors

Correct: psychoeducation, watchful waiting, screen for ASD at 2 weeks

Trap: mandatory critical incident stress debriefing — increases PTSD risk

— Postpartum woman 5 weeks after traumatic delivery with intrusion, avoidance, arousal — breastfeeding

— Pharmacotherapy of choice: sertraline

— Trap: paroxetine, benzodiazepine

— Teen with declining grades and fighting after parents' divorce

Correct: family-based therapy and individual CBT

— Trap: starting an SSRI as first-line

— Veteran 6 weeks post-deployment with recurrent combat nightmares despite sleep hygiene

Correct: prazosin, titrate from 1 mg qhs

— Trap: zolpidem, alprazolam

— Patient labeled as having "anxiety from work stress" but with paroxysmal HTN, headache, diaphoresis

Correct next step: plasma metanephrines (pheochromocytoma)

— Trap: starting SSRI

— Patient with AjD voices specific homicidal ideation toward an identified ex-partner

Correct: warn intended victim and/or police, document

Board pearl: When in doubt on a stressor vignette, the safest answer set is usually (1) psychotherapy referral, (2) screen for SI, (3) follow-up within 1–2 weeks, (4) avoid benzodiazepine — this composite covers most stems.

Stem pattern 1 — ASD vs PTSD timing:
Stem pattern 2 — AjD vs MDD:
Stem pattern 3 — wrong pharmacotherapy trap:
Stem pattern 4 — debriefing trap:
Stem pattern 5 — pregnancy:
Stem pattern 6 — adolescent AjD with conduct disturbance:
Stem pattern 7 — prazosin for nightmares:
Stem pattern 8 — medical mimic:
Stem pattern 9 — Tarasoff:
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One-Line Recap

Acute stress disorder and adjustment disorders are stressor-defined diagnoses in which the magnitude of the precipitating event (Criterion A trauma vs ordinary life stressor) and the symptom timeline (3 days–1 month for ASD, within 3 months and resolving within 6 months for AjD) determine the label, while psychotherapy is first-line treatment for both and pharmacotherapy is adjunctive, with benzodiazepines and single-session debriefing specifically avoided.

Stressor type: life-threatening or sexual violence → ASD/PTSD; everything else → AjD

Timeline: <3 days = normal reaction; 3 days–1 month = ASD; >1 month = PTSD; AjD within 3 months of stressor, resolves within 6 months of stressor end

First-line: psychotherapy (TF-CBT for ASD; brief problem-solving or supportive therapy for AjD)

Targeted pharmacotherapy: prazosin for trauma nightmares; sertraline/escitalopram for persistent depressive/anxious symptoms; trazodone for insomnia

Avoid: benzodiazepines post-trauma, single-session debriefing, paroxetine in first-trimester pregnancy, citalopram >20 mg in elderly

— C-SSRS screening at every visit; AjD carries underrecognized suicide risk

— Lethal-means counseling, especially firearm storage

— 988 Suicide and Crisis Lifeline in writing; follow-up within 1–2 weeks of any acute stressor visit

— Tarasoff duty-to-warn when an identifiable victim is at risk

— Measurement-based care (PHQ-9, GAD-7, PCL-5) at each visit

— Collaborative care model in primary care for AjD/mild ASD

— Warm handoff and post-ED follow-up call within 24–48 hours after any crisis presentation

— Document functional impairment for FMLA/disability with objective findings

— Reassess at 6 months; if AjD persists past stressor resolution, reformulate the diagnosis to MDD, GAD, or PTSD

Board pearl: Two reflex rules — no benzodiazepines after trauma, no mandatory single-session debriefing — solve a large fraction of Step 3 stems in this domain on their own.

Diagnostic axes:
Treatment essentials:
Safety anchors:
Step 3 systems thinking:
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