Delusional disorder is defined by delusions with no other psychotic symptoms for at least which duration?

Delusional disorder is defined by delusions with no other psychotic symptoms for at least which duration?

• A. At least 1 month
• B. At least 2 weeks
• C. At least 6 months
• D. At least 3 months

Answer: (A)

Delusional disorder centers on persistent delusions that endure for at least one month, with no other psychotic symptoms that would qualify for a schizophrenia-spectrum disorder. The one-month threshold is the key feature distinguishing this condition from brief psychotic disorders (which resolve within a month) and from broader schizophrenia-spectrum illnesses that require additional symptoms. If the delusions have been present for a month or longer and the person’s functioning is not markedly impaired and there aren’t disorganized thoughts or behaviors, this pattern fits delusional disorder. Longer durations fit as well, provided the other criteria remain unmet.

Delusional disorder centers on persistent delusions that endure for at least one month, with no other psychotic symptoms that would qualify for a schizophrenia-spectrum disorder. The one-month threshold is the key feature distinguishing this condition from brief psychotic disorders (which resolve within a month) and from broader schizophrenia-spectrum illnesses that require additional symptoms. If the delusions have been present for a month or longer and the person’s functioning is not markedly impaired and there aren’t disorganized thoughts or behaviors, this pattern fits delusional disorder. Longer durations fit as well, provided the other criteria remain unmet.