Delirium causes severe confusion and rapid changes in brain function that occur with physical or mental illness.
Delirium usually causes a serious disturbance in a person's mental abilities that results in a decreased awareness of one's environment and confused thinking.
The onset of delirium is usually sudden.
Delirium results in an alteration in mental status and brain failure in a vulnerable individual, often an older adults.
Delirium can be caused by surgery, medications, urinary tract infection, pneumonia, lack of sleep, excessive light, noise or pain.
Symptoms of Delirium
While delirium usually comes on suddenly, dementia is the result of a progressive decline in memory and thinking skills that is caused by the death of brain cells.
Dementia affects memory, thinking, language, judgment, behavior, and a person’s ability to perform normal daily activities.
Dementia is a word that describes symptoms of the gradual deterioration of mental functioning that cannot be explained by normal aging.
Symptoms of dementia can include:
For a comprehensive discussion of dementia see the following