Nurse Penny is aware that the symptoms that distinguish post traumatic stress disorder from other anxiety disorder would be:

Avoidance of situation & certain activities that resemble the stressDepression and a blunted affect when discussing the traumatic situationLack of interest in family & others Re-experiencing the trauma in dreams or flashback

Explanation.

Experiencing the actual trauma in dreams or flashback is the major symptom that distinguishes post traumatic stress disorder from other anxiety disorder.