us-abfm MCQ (SBA): Delirium

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EasyPsychiatryDeliriumus-abfmus-abimus-usmle-step-2

A 72-year-old woman in a nursing home becomes acutely confused and agitated over several hours. She is disoriented and has visual hallucinations. Family reports she was previously oriented. Which of the following features best distinguishes delirium from dementia in this case?

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