<prompt> Which of the following is not a clinical feature of post-traumatic stress disorder?FlashbacksNightmareHallucinationsEmotional distress  <response>: Ref. Oxford textbook of Psychiatry. Page. 49 Hallucination is not a part of PTSDPTSD DSM 5 criteriaCriterion A one required: The person was exposed to: death, threatened death, actual or threatened serious injury, or actual or threatened sexual violence, in the following ways:Direct exposureWitnessing the traumaLearning that a relative or close friend was exposed to a traumaIndirect exposure to aversive details of the trauma, usually in the course of professional duties e.g., first responders, medicsCriterion B one required: The traumatic event is persistently re-experienced, in the following ways:Intrusive thoughtsNightmaresFlashbacksEmotional distress after exposure to traumatic remindersPhysical reactivity after exposure to traumatic remindersCriterion C one required: Avoidance of trauma-related stimuli after the trauma, in the following ways:Trauma-related thoughts or feelingsTrauma-related remindersCriterion D two required: Negative thoughts or feelings that began or worsened after the trauma, in the following ways:Inability to recall key features of the traumaOverly negative thoughts and assumptions about oneself or the worldExaggerated blame of self or others for causing the traumaNegative affectDecreased interest in activitiesFeeling isolatedDifficulty experiencing positive affectCriterion E two required: Trauma-related arousal and reactivity that began or worsened after the trauma, in the following ways:Irritability or aggressionRisky or destructive behaviorHypervigilanceHeightened startle reactionDifficulty concentratingDifficulty sleepingCriterion F required: Symptoms last for more than 1 month.Criterion G required: Symptoms create distress or functional impairment e.g., social, occupational. Criterion H required: Symptoms are not due to medication, substance use, or other illness. 