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PSYCHIATRIC ASSESSMENT

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Psychiatric diagnosis rests upon the established principles of a thorough history and examination. The forces contributing to the individual's life situation must be identified, and this can be done only if the examination includes the history, mental status, medical conditions (including medications), and pertinent social, cultural, and environmental factors impinging on the individual. The fifth edition of the American Psychiatric Association’s Diagnostic and Statistical Manual (DSM-5) utilizes specific criteria with which to objectively assess symptoms, rather than purely discrete diagnostic categories. For example, personality dimensions are more prominent than they were in DSM-IV. Nonetheless, the diagnosis is still based on a solid history and examination.

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The examination of a psychiatric patient should include a complete medical history and physical examination (with emphasis on the neurologic examination) as well as all necessary laboratory and other special studies. Physical illness may frequently present as psychiatric disease, and vice versa. In many instances, the physical examination is completed by the primary care clinician who is working with a psychiatrist.

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Interview
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Every psychiatric history should cover the following topics: (1) complaint, from the patient's viewpoint; (2) the present illness, or the evolution of the symptoms; (3) neurovegetative signs such as libido, appetite, and sleep; (4) previous disorders and the nature and extent of their treatment; (5) the family history—important for genetic aspects and family influences; (6) the personal history—childhood development, adolescent adjustment, level of education, and adult coping patterns; (7) current life functioning, with attention to vocational, social, educational, and avocational areas; and (8) present or past use of alcohol and other drugs.

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It is often essential to obtain additional information from the family. Observing interactions of the patient with significant others in the context of a family interview may give important diagnostic information and may even underscore the nature of the problem and suggest a therapeutic approach.

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The formal mental status examination should be particularly detailed when there is any evidence or high risk of cognitive dysfunction. The mental status examination includes the items and clinical features shown in eTable 25–1.

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eTable 25–1.Mental status examination.

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