Psychiatry and Behavioral Health Rotation

Psychiatry EOR: Anxiety Disorders; Trauma and Stress Related Disorders (Pearls)

📌 2026 blueprint note: On the updated (July 2026) exam, this content spans two areasTrauma and Stress-Related Disorders; Abuse and Neglect (PTSD, acute stress, adjustment, grief, reactive attachment — pair with the Abuse & Neglect Pearls) and Anxiety; Somatic Symptom and Related Disorders (GAD, panic, phobias, social and separation anxiety — pair with the Somatic Symptom Pearls). Testing on the legacy (pre-July 2026) exam? This page still matches your Anxiety Disorders; Trauma- and Stress-Related Disorders area exactly.
ANXIETY DISORDERS
Generalized anxiety disorder
Patient will present as → a 33-year-old accountant with 8 months of uncontrollable worry about work, finances, and her children’s health, with restlessness, muscle tension, and poor sleep. She “can’t remember the last time she felt relaxed,” and her TSH is normal.

Excessive worry about MULTIPLE domains, more days than not, for ≥ 6 months

  • Somatic companions: restlessness · fatigue · poor concentration · irritability · muscle tension · sleep disturbance
  • Rule out hyperthyroidism, stimulants, and caffeine before diagnosing

DX: DSM-5 — excessive anxiety and worry, difficult to control, more days than not for ≥ 6 months, with ≥ 3 of 6 somatic symptoms and functional impairment

  • Screen with GAD-7; the worry spans multiple domains (vs the focused fear of phobias or panic)

TX: SSRI or SNRI first-line + CBT

  • Buspirone — non-sedating, non-habit-forming adjunct; avoid long-term benzodiazepines
Panic disorder
Patient will present as → a 24-year-old woman with recurrent, out-of-the-blue episodes of palpitations, chest pain, dyspnea, and fear of dying that peak within minutes. ECG, troponin, and TSH are normal, and she now avoids driving for fear of another attack.

Recurrent UNEXPECTED panic attacks + ≥ 1 month of worry about further attacks or maladaptive behavior change

  • Attacks peak within minutes: palpitations, sweating, trembling, dyspnea, chest pain, paresthesias, derealization, fear of dying/losing control
  • Rule out cardiac, thyroid, and stimulant causes first; agoraphobic avoidance commonly develops

DX: DSM-5 — recurrent unexpected panic attacks, with ≥ 1 month of persistent worry about further attacks or maladaptive behavior change

  • Panic attacks alone are not the disorder — they occur across many conditions; the unexpected pattern + the month of consequence is the diagnosis

TX: SSRI first-line + CBT

  • Benzodiazepines only as a short-term bridge while the SSRI takes effect
Phobic disorders
Patient will present as → a 28-year-old who fears and avoids a specific trigger — flying for one patient, public speaking for another — with immediate anxiety on exposure and insight that the fear is excessive.

Excessive, persistent fear of a specific object, situation, or activity — with avoidance out of proportion to the danger

  • Umbrella spanning specific phobia and social phobia (social anxiety disorder) — each has its own section on this page
  • Patients know the fear is excessive but cannot overcome it

DX: DSM-5 — marked fear or anxiety, provoked immediately by the trigger, avoided or endured with intense distress, out of proportion, lasting ≥ 6 months

  • Specify the stimulus; impairment in social or occupational functioning completes the diagnosis

TX: Exposure-based CBT first-line

  • SSRI/SNRI for the social form; propranolol for performance-only situations
Separation anxiety disorder
Patient will present as → a 7-year-old girl with stomachaches and headaches every school morning that vanish on weekends. She refuses sleepovers, follows her mother from room to room, and fears “something bad will happen to Mom” while they are apart. Pediatric workup is normal.

Recurrent physical complaints timed to separations (school mornings) with a normal medical workup

  • The most common anxiety disorder of childhood — though DSM-5 allows the diagnosis at any age
  • Normal development: separation anxiety is expected from ~8 months to about age 3
  • vs truancy: the school-refusing child with separation anxiety stays home with the parent, not out with peers; screen with SCARED

DX: DSM-5 — developmentally inappropriate, excessive fear of separation from attachment figures with ≥ 3 of 8 symptoms (distress at separation · worry about losing attachment figures · worry an event causes separation · school refusal · fear of being alone · refusal to sleep away · separation nightmares · somatic complaints)

  • Duration: ≥ 4 weeks in children/adolescents; ≥ 6 months in adults

TX: CBT first-line — graded separations with parent coaching (stop accommodating avoidance)

  • Prompt return to school — every missed day reinforces avoidance; add an SSRI for moderate-severe cases
Social anxiety disorder
Patient will present as → a college student who avoids presentations, dating, and eating in public for the past year, terrified she will embarrass herself in front of others. Her grades are slipping because she cannot join required seminars.

Marked fear of scrutiny by others — public speaking, eating in public, meeting strangers — lasting ≥ 6 months

  • Core fear: acting in a way that will be negatively evaluated (humiliating, embarrassing, rejected)
  • May coexist with avoidant personality disorder

DX: DSM-5 — marked fear of ≥ 1 social situation with possible scrutiny, almost always provoking anxiety, avoided or endured with distress, out of proportion, ≥ 6 months

  • Specify performance-only when limited to speaking/performing in public

TX: SSRI/SNRI + CBT first-line

  • Performance-only subtype: propranolol (or a benzodiazepine) as needed before events — the classic board answer
Specific phobias
Patient will present as → a 30-year-old man who faints at the sight of needles — anxiety begins the moment a blood draw is mentioned, and he has skipped recommended labs for years to avoid it.

Excessive, persistent fear of a specific object or situation with IMMEDIATE anxiety on exposure, ≥ 6 months

  • Types: animal · natural environment · blood-injection-injury (uniquely vasovagal — bradycardia and fainting) · situational
  • Patients recognize the fear is excessive but cannot overcome it

DX: DSM-5 — marked fear or avoidance of a specific object/situation, immediate anxiety on exposure, out of proportion, ≥ 6 months, with impairment

  • Clinical diagnosis — no workup beyond excluding mimics when atypical

TX: Exposure-based CBT first-line

  • Applied muscle tension for blood-injection-injury phobia (counters the vasovagal drop)
  • A short-acting benzodiazepine can be used situationally (e.g., a single flight) when exposure therapy is not feasible
TRAUMA- AND STRESS-RELATED DISORDERS
Acute stress disorder
Patient will present as → a 35-year-old with nightmares, flashbacks, and hypervigilance 2 weeks after a motor vehicle collision, feeling detached and “in a fog,” avoiding driving past the intersection where it happened.

Same symptoms as PTSD, but lasting 3 days to 1 month after the trauma

  • Dissociative symptoms (numbing, derealization, amnesia) are prominent in the acute window
  • Symptoms beyond 1 month → rediagnose as PTSD

DX: DSM-5 — trauma exposure + ≥ 9 of 14 symptoms across intrusion, negative mood, dissociation, avoidance, and arousal clusters, lasting 3 days to 1 month

  • Screen for concurrent injury, substances, and prior psychiatric history

TX: Trauma-focused CBT — reduces progression to PTSD

  • Benzodiazepines are not recommended and may worsen outcomes; no medication prevents PTSD
Post-traumatic stress disorder
Patient will present as → a 31-year-old combat veteran with 4 months of nightmares and flashbacks, avoiding crowds and news coverage, on edge with an exaggerated startle, and feeling emotionally detached from his family.

Trauma + ≥ 1 month of intrusion, avoidance, negative mood/cognition, and hyperarousal

  • Symptoms < 1 month = acute stress disorder; specify with dissociative symptoms or delayed expression
  • Screen for comorbid depression, substance use, and suicidality

DX: DSM-5 — trauma exposure + symptoms from all 4 clusters: ≥ 1 intrusion · ≥ 1 avoidance · ≥ 2 negative cognition/mood · ≥ 2 arousal, lasting > 1 month with impairment

  • Screen with PC-PTSD-5 / PCL-5

TX: Trauma-focused psychotherapy first-line (CPT, prolonged exposure, EMDR) and/or SSRIs/SNRIs (sertraline, paroxetine, venlafaxine)

  • Prazosin for trauma-related nightmares
  • Benzodiazepines are not recommended in PTSD
Adjustment disorders
Patient will present as → a 45-year-old man tearful and unable to focus at work for 6 weeks after losing his job. Symptoms began within a month of the layoff and are out of proportion, but he does not meet criteria for a major depressive episode.

Disproportionate response to an identifiable stressor — beginning within 3 months, resolving within 6 months of the stressor's end

  • Common stressors: job loss, illness, marital/financial conflict, school problems, family illness or death
  • Specify: with depressed mood · with anxiety · mixed · with disturbance of conduct

DX: DSM-5 — emotional or behavioral symptoms within 3 months of a stressor, out of proportion to it or functionally impairing

  • Does not meet criteria for another mental disorder — if full MDE criteria are met, diagnose MDD instead
  • Resolves within 6 months after the stressor or its consequences end

TX: Psychotherapy is the treatment

  • Brief, targeted symptomatic medication (e.g., for sleep) only as needed; reassess for evolution into MDD
Bereavement
Patient will present as → a widow who tears up in waves when reminded of her husband, sometimes hears his voice, but keeps her self-esteem, accepts support, and is slowly resuming her routine.

Grief comes in WAVES triggered by reminders — with preserved self-esteem

  • Transient hallucinations of the deceased (hearing their voice) with intact insight can be normal
  • vs MDD: pervasive depressed mood, worthlessness, guilt unrelated to the deceased, suicidal ideation — an MDE can be diagnosed during bereavement when criteria are met

DX: Clinical — distinguish normal grief from a major depressive episode and from prolonged grief disorder

  • Grief persisting and impairing ≥ 12 months after the death → evaluate for prolonged grief disorder

TX: Support and time — no medication for normal grief

  • Treat a major depressive episode if it emerges; grief support groups help
Prolonged grief disorder
Patient will present as → a mother still consumed by daily yearning for her son well over a year after his death — “part of me died with him.” She avoids anything that reminds her of him and feels life is meaningless.

Intense yearning or preoccupation with the deceased, nearly every day, ≥ 12 months after the death (≥ 6 months in children)

  • DSM-5-TR's newest diagnosis in this family — grief that exceeds cultural norms and impairs functioning
  • Features: identity disruption · disbelief · avoidance of reminders · emotional numbness · feeling life is meaningless

DX: DSM-5-TR≥ 12 months since the death (≥ 6 months in children) + intense yearning/preoccupation nearly daily + ≥ 3 of 8 accompanying symptoms

  • Duration and severity exceed social/cultural norms; not better explained by MDD or PTSD

TX: Grief-targeted psychotherapy (complicated grief therapy)more effective than antidepressants for the grief itself

  • Treat comorbid major depression when present
Reactive attachment disorder
Patient will present as → a 3-year-old girl recently placed in foster care after removal from a home with severe neglect. She is withdrawn and watchful, does not seek or respond to comfort when she scrapes her knee, and shows little positive emotion. Developmental screening excludes autism.

A neglected child who is emotionally withdrawn and rarely seeks or responds to comfort when distressed

  • Requires a history of grossly insufficient care — severe neglect, repeated caregiver changes, or institutional rearing
  • vs disinhibited social engagement disorder: same history, opposite behavior — overly familiar, wanders off with strangers
  • vs autism: no neglect requirement, restricted/repetitive behaviors present, and does NOT improve with nurturing care alone

DX: DSM-5 — inhibited, emotionally withdrawn behavior toward caregivers (rarely seeks AND rarely responds to comfort) + ≥ 2 of: minimal responsiveness · limited positive affect · unexplained irritability/fearfulness

  • Evident before age 5; developmental age ≥ 9 months; autism criteria not met

TX: One consistent, emotionally available caregiver + dyadic caregiver-child therapy — the caregiving environment IS the treatment

  • No medication treats RAD; "holding/rebirthing" attachment therapies are harmful
Psychiatry EOR: Suicidal behaviors (Prev Lesson)
(Next Lesson) Psychiatry EOR: Generalized anxiety disorder (Lecture)
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