Psychotic Disorders

Question 1

Schizophrenia

Answer 1

A. Two of (with one being 1, 2, or 3):

1. Delusions
2. Hallucinations
3. Disorganized speech
4. Grossly disorganized or catatonic behaviour
5. Negative symptoms

B. Persistent for 6 months (including one month of A).

Question 2

Schizoaffective Disorder

Answer 2

A. Major mood episode concurrent with criterion A of schizophrenia

B. Delusions or hallucinations for 2 or more weeks in the absence of a major mood episode

C. Mood symptoms are present for the majority of the illness

Question 3

Delusional Disorder

Answer 3

A. Delusions for at least one month

B. Criterion A of schizophrenia never met (tactile/olfactory hallucinations allowed if they fit the theme of the delusion)

C. Function not impaired outside of behavior related to the delusion

D. Doesn’t occur exclusively in the context of a mood episode or substance use

Question 4

Substance Induced Psychosis

Answer 4

A. Presence of hallucination or delusions

B. Symptoms in the context of intoxication or withdrawal of a substance that is capable of causing psychosis

C. Symptoms do not persist after cessation of substance

D. Delirium excluded