Some people with PTSD, especially if untreated, can become irritated or even violent for no clear reason. If you suspect your patient is having a bad day or seems to be off of her medications, you should reschedule the appointment.
All though the article tended to use the term "some people with PTSD" frequently, this particular "suggestion" bothered me a lot. No clear reason?? I can't imagine that there has been a time when I have any "irritation" that has NOT been linked to something. Patient and trust with my therapist has shown me this.
Then again it's just my opinion.