title: When patients suddenly become confused. Hospital delirium is common and often goes unrecognized.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003072:Cognition Disorders / Q000175:diagnosis; D003422:Critical Care / Q000523:psychology*; D003693:Delirium / Q000175:diagnosis* / Q000209:etiology / Q000517:prevention & control*; D003937:Diagnosis, Differential; D003951:Diagnostic Errors / Q000517:prevention & control*; D005260:Female; D015577:Geriatric Assessment / Q000379:methods; D006760:Hospitalization; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000175:diagnosis / Q000517:prevention & control* / Q000523:psychology; D012307:Risk Factors