Correct Answer: D. Post- traumatic stress disorder
Post-traumatic stress disorder (PTSD) is a chronic anxiety disorder that develops following exposure to a severe traumatic event. The discriminating feature here is the 2-month duration combined with intrusive recollections (nightmares of the same incident), sleep disturbance (waking up at night), and hyperarousal (screaming). According to ICD-10 and DSM-5 criteria, PTSD requires symptoms to persist for at least 1 month after the trauma; this patient clearly exceeds that threshold. The core pathophysiology involves dysregulation of the amygdala and prefrontal cortex, leading to failure to extinguish fear memories. The clinical presentation includes three cardinal symptom clusters: (1) re-experiencing phenomena (intrusive memories, nightmares, flashbacks), (2) avoidance and emotional numbing, and (3) hyperarousal (sleep disturbance, irritability, exaggerated startle). In Indian clinical practice, PTSD is increasingly recognized in survivors of accidents, natural disasters, and communal violence. The first-line pharmacological treatment is an SSRI (sertraline or paroxetine per NICE guidelines), combined with trauma-focused cognitive behavioral therapy. The presence of recurrent nightmares and screaming episodes specifically indicates re-experiencing symptoms, which are pathognomonic for PTSD when occurring beyond the 1-month window.
Why the other options are wrong
A. Acute stress reaction — Acute stress reaction occurs within hours to days of trauma and resolves within 2–3 weeks. This patient's symptoms have persisted for 2 months, far exceeding the acute phase window. Acute stress reaction is characterized by dissociative symptoms and confusion immediately post-trauma, not the chronic re-experiencing and nightmares seen here. The NBE trap is pairing 'car accident' with 'acute' to lure students into choosing the temporally inappropriate diagnosis. B. Mania — Mania presents with elevated mood, grandiosity, decreased need for sleep, and goal-directed hyperactivity—none of which fit this patient. Screaming and nightmares are not manic symptoms; they reflect anxiety and re-experiencing, not mood elevation. This is a distractor designed to test whether students confuse hyperarousal (a PTSD symptom) with the increased psychomotor activity of mania. The clinical context (post-trauma) makes mania implausible. C. Adjustment disorder — Adjustment disorder develops in response to an identifiable stressor and involves emotional or behavioral symptoms that are maladaptive but not severe. Symptoms typically resolve within 6 months of stressor removal. This patient exhibits intrusive nightmares and screaming—severe re-experiencing symptoms that exceed the mild-to-moderate distress of adjustment disorder. Adjustment disorder lacks the specific PTSD symptom clusters (re-experiencing, avoidance, hyperarousal). The trap is assuming any post-trauma distress = adjustment disorder.
High-Yield Facts
- PTSD requires ≥1 month symptom duration post-trauma; acute stress reaction resolves within 2–3 weeks—timing is the key discriminator.
- Re-experiencing symptoms (intrusive memories, nightmares, flashbacks) are pathognomonic for PTSD and distinguish it from adjustment disorder.
- Three symptom clusters in PTSD: re-experiencing, avoidance/numbing, and hyperarousal (sleep disturbance, irritability, exaggerated startle).
- First-line pharmacotherapy: SSRIs (sertraline 50–200 mg/day, paroxetine 20–60 mg/day) combined with trauma-focused CBT per Indian psychiatric guidelines.
- Amygdala hyperactivity + prefrontal cortex hypoactivity is the neurobiological basis; fear extinction is impaired in PTSD.
Mnemonics
PTSD vs Acute Stress: TIME matters Acute = hours to days, resolves in 2–3 weeks. PTSD = ≥1 month, chronic. Remember: 'Acute is brief, PTSD is a thief (of time)'—it steals months and years. PTSD Symptom Triad: RAH Re-experiencing (nightmares, flashbacks), Avoidance (emotional numbing, avoidance of reminders), Hyperarousal (sleep disturbance, irritability, startle). Use this to rule out adjustment disorder (which lacks this triad).
NBE Trap
NBE pairs 'car accident' with 'acute stress reaction' to exploit students who conflate any immediate post-trauma distress with acute stress disorder, ignoring the critical 2-month duration that mandates PTSD diagnosis. The presence of screaming and nightmares (re-experiencing) further narrows the diagnosis away from the milder adjustment disorder.
Clinical Pearl
In Indian emergency departments and trauma centers, PTSD is frequently underdiagnosed in accident survivors who present with sleep disturbance and anxiety months later. A simple screening question—"Do you have nightmares about the accident?"—combined with duration assessment (>1 month) rapidly identifies PTSD and triggers early SSRI + psychotherapy referral, preventing chronicity and disability.
_Reference: ICD-10 F43.1 (PTSD); DSM-5 309.81; Kaplan & Sadock's Synopsis of Psychiatry (PTSD section); Indian Psychiatric Society guidelines on trauma-related disorders_