Post-traumatic stress disorder is characterized by all Except: (A) Flash back and night mare, (B) Severe traumatic life event, (C) Re-experiencing stressful events, (D) It develops after 6 months of stress
Answer is D. Symptoms of PTSD develop within 6 months of stressor, however, 10% of patients have delayed the onset Reference: Kaplon and sadock, 11 th edition, synopsis of psychiatry, 11 th edition, pg no. 437