Certified Advanced Alcohol and Drug Counselor (CAADC) Practice Exam

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What is the requirement for diagnosing a delusional disorder?

At least three non-bizarre delusions for two weeks
One or more non-bizarre delusions for at least a month
One bizarre delusion for at least six months
More than one delusion for two months

The correct answer is: One or more non-bizarre delusions for at least a month

The requirement for diagnosing a delusional disorder hinges on the presence of one or more non-bizarre delusions that persist for at least a month. Non-bizarre delusions are beliefs that could occur in real life, such as being followed or deceived, and having them for at least one month meets the criteria set in the DSM-5 for diagnosis. This time frame allows for a clear assessment of the duration of the delusive beliefs, ensuring that they are not transient or related to another mental health condition. Having a single non-bizarre delusion for this duration is sufficient for the diagnosis, distinguishing delusional disorder from other psychotic disorders, where more extensive symptoms might be present. Thus, this option aligns with the established guidelines for diagnosing this particular disorder in clinical practice.