Delirium (acute confusional state) is a sudden change in a person's mental status, leading to confusion and unusual behavior.
Symptoms of delirium usually develop over the course of several hours to a few days. Symptoms may fluctuate and often include:
Delirium may be caused by withdrawal from alcohol or drugs or medicines. The development or worsening of an infection or other health problem can also lead to delirium. People who have dementia are more prone to delirium.
Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine
Specialist Medical ReviewerPeter J. Whitehouse, MD - Neurology
Current as ofNovember 20, 2015
WebMD Medical Reference from Healthwise