The outcome varies. Acute disorders that cause delirium may co-exist with chronic disorders that cause dementia. Acute brain syndromes may be reversible with treatment of the underlying cause.

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Delirium often lasts only about 1 week, although it may take several weeks for cognitive function to return to normal levels. Full recovery is common.

• loss of ability to function or care for self
• loss of ability to interact
• may progress to stupor or coma
• side effects of medications used to treat the disorder
• other complications vary depending on the causative disorder

Call your health care provider if a rapid change in mental status occurs.