Key features of depression and its management in general practice.

 
"..I've been possessed by the devil"

Regarding this presentation, which of the following statements are true?
1. Omar's delusions are diagnostic of schizophrenia.
2. Psychotic depression occurs in around 10% of people with major depressive disorders.
3. Auditory hallucinations in this context suggest a diagnosis of schizophrenia.
4. Omar should be referred to a psychiatrist.
5. Suicidal ideation is an indication for referral to a psychiatrist.