A 34 year old man was brought to the ER by his wife. He is disheveled and dirty and yelling his friend’s name. His wife tells the ER physician that her husband was in a car accident three weeks ago and lost his best friend. Upon interviewing him, he is detached with a flat effect and is responding to internal stimuli. What is the most likely diagnosis? A- Brief psychotic attack B- Acute stress disorder C- Post-traumatic stress disorder D- Schizophreniform disorder E- Schizophrenia http://medical-usmle.com/?p=913
