Trauma and Stressor Related Disorders Involuntary, Intrusive Thoughts, Memories, Images, Dreams or Flashbacks Causing Psychological Distress Associated with a Stressful Event Associated with a Traumatic Event < 1 Month Post-Event > 1 Month Post-Event Acute Stress Disorder Post-Traumatic Stress Disorder American Psychiatric Association (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed. DSM-V. NB: If the symptoms are clinically significant but do not meet the criteria for a specific Trauma and Stressor Related Disorder consider Other Specified Trauma and Stressor-Related Disorder or Unspecified Trauma and Stressor-Related Disorder Rule out General Medical Condition (e.g. hyperthyroidism, anemia, CHF), Another Mental Disorder, or Substance/Medication-Induced Development of Emotional or Behavioural Symptoms Within 3 Months of Event Onset, Symptoms Resolve

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