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MediumPsychiatryPost-operative Deliriumukmlamrcgp aktpanemrcem sbamrcp part 1prescribing safety assessment

A 78-year-year-old man undergoes elective hip replacement surgery. Post-operatively, he develops confusion, agitation, visual hallucinations, and fluctuating levels of consciousness, worse in the evenings. His observations are stable, and routine blood tests including electrolytes, FBC, CRP, and calcium are normal. What is the most likely diagnosis?

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