A 27-year-old man reports 1 week of feeling unusually irritable. During this time, he has increased energy and activity, sleeps less, and finds it difficult to sit still. He also is more talkative than usual and is easily distractible, to the point of finding it difficult to complete his work assignments. A physical ex amination and laboratory workup are negative for any medical cause of his symptoms and he takes no medications. What diagnosis best fits this clinical picture?

Risk factors for dementia include:

All of the following are positive symptoms commonly seen in schizophrenia except: 

In which of the following ways do manic episodes differ from attention-defi cit/hyperactivity disoorder (ADHD)?

Which of the following disease is part of the differential diagnosis for conversion disorder? 

The most frequent presenting complaint of parents about their child with autism spectrum disorder is

Which of the following cognitive changes can be associated with normal aging?

Which of the following is true regarding conduct disorder?

Which of the following is not a recommended treatment strategy for a patient with somatic symptom disorder? 

Which of the following statements does not apply to the treatment of gender dysphoria?