There is some evidence that delirium can be prevented. Outside the ICU, repeated reorientation, noise reduction, cognitive stimulation, vision and hearing aids, adequate hydration, and early mobilization can reduce the incidence of delirium in hospitalized patients.45 Haloperidol prophylaxis in patients undergoing hip surgery reduced the severity and duration of delirium.46 Among patients in the ICU, the duration of delirium was cut in half with early mobilization during interruptions in sedation.