Confusion in the elderly patient is usually a symptom of delirium or of life.2 An estimated 15 to 26 percent of elderly patients with delirium die.
Learn what causes sudden confusion and how it's treated. Some people become quiet and withdrawn, while others get nervous and upset.
Sudden confusion (delirium) can have many different causes. urinary tract infections (UTIs) are a common cause in elderly people or people with dementia.