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Delirium capacity — DGM MCQ

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ModerateDeliriumDelirium capacityDGM

An 83-year-old man with delirium refuses antibiotics for pneumonia. He cannot retain the explanation and believes he is at home despite repeated orientation. He is intermittently drowsy and inattentive. Current medicines include no relevant regular medicines. What is the most appropriate assessment?

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Correct answer: A — Decision-specific mental capacity assessment

Capacity must be assessed for the specific decision when delirium may impair understanding, retention or weighing of information. Clear speech does not prove capacity, relatives cannot consent unless legally authorised, neuropsychology is not needed acutely, and dementia should not be assumed. Delirium often causes temporary incapacity, so reassessment is important as it improves.

Reference: Mental Capacity Act 2005; NICE NG108