Which diagnosis best fits duration, episodicity, and exclusions?
A
Posttraumatic stress disorder (PTSD)
Exposure to actual/threatened death, serious injury, or sexual violence (direct, witnessed, learning about close person, or repeated indirect exposure)
AExposure to actual/threatened death, serious injury, or sexual violence (direct, witnessed, learning about close person, or repeated indirect exposure)
BExposure to actual/threatened death, serious injury, or sexual violence (same exposure types as PTSD Criterion A)
Additional criteria
AB. ≥1 intrusion symptom: involuntary memories; nightmares; dissociative reactions (flashbacks); intense psychological distress; marked physiological reactions to trauma cues C. ≥1 persistent avoidance: avoidance of trauma-related internal stimuli or external reminders D. ≥2 negative alterations in cognitions/mood: inability to recall aspects of trauma; persistent negative beliefs; distorted blame; persistent negative emotional state; diminished interest; detachment; inability to experience positive emotions
BB. ≥9 of 14 symptoms from: intrusion, negative mood, dissociation, avoidance, arousal clusters C. Duration 3 days to 1 month after trauma exposure D. Clinically significant distress or impairment
Key features
AA. Exposure to actual/threatened death, serious injury, or sexual violence (direct, witnessed, learning about close person, or repeated indirect exposure) B. ≥1 intrusion symptom: involuntary memories; nightmares; dissociative reactions (flashbacks); intense psychological distress; marked physiological reactions to trauma cues C. ≥1 persistent avoidance: avoidance of trauma-related internal stimuli or external reminders
BA. Exposure to actual/threatened death, serious injury, or sexual violence (same exposure types as PTSD Criterion A) B. ≥9 of 14 symptoms from: intrusion, negative mood, dissociation, avoidance, arousal clusters C. Duration 3 days to 1 month after trauma exposure
Common specifiers
AWith dissociative symptoms (depersonalisation); With dissociative symptoms (derealisation); With delayed expression