Which disorder has diagnostic criteria that include the presence of 1+ of the following: delusions, hallucinations, disorganized speech, or grossly disorganized or catatonic behavior?

Which disorder has diagnostic criteria that include the presence of 1+ of the following: delusions, hallucinations, disorganized speech, or grossly disorganized or catatonic behavior?

• A. Bipolar Disorder
• B. Major Depressive Disorder
• C. Schizoaffective Disorder
• D. Brief Psychotic Disorder

Answer: (D)

The key idea is recognizing the diagnostic profile of a brief psychotic episode: one or more true psychotic symptoms—delusions, hallucinations, disorganized speech, or grossly disorganized or catatonic behavior—appear suddenly and produce an acute episode that lasts only a short time, with full return to premorbid functioning afterward. This brief duration, typically from 1 day up to less than 1 month, is what distinguishes brief psychotic disorder from other conditions. Other disorders involve psychosis in different contexts or longer courses. Psychotic features can occur with mood disorders (bipolar or major depression) but are tied to mood episodes and don’t define a standalone brief, isolated episode. Schizoaffective disorder requires a longer-standing pattern of psychosis with concurrent mood symptoms across a substantial portion of illness, not just a brief, isolated window. The presenting criteria here align specifically with a short, isolated psychotic episode that remits fully, which is why this option is the best fit.

The key idea is recognizing the diagnostic profile of a brief psychotic episode: one or more true psychotic symptoms—delusions, hallucinations, disorganized speech, or grossly disorganized or catatonic behavior—appear suddenly and produce an acute episode that lasts only a short time, with full return to premorbid functioning afterward. This brief duration, typically from 1 day up to less than 1 month, is what distinguishes brief psychotic disorder from other conditions.

Other disorders involve psychosis in different contexts or longer courses. Psychotic features can occur with mood disorders (bipolar or major depression) but are tied to mood episodes and don’t define a standalone brief, isolated episode. Schizoaffective disorder requires a longer-standing pattern of psychosis with concurrent mood symptoms across a substantial portion of illness, not just a brief, isolated window. The presenting criteria here align specifically with a short, isolated psychotic episode that remits fully, which is why this option is the best fit.