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| | Dementia: Delirium and Dementia: Merck Manual Home Edition |
 | | Dementia is a slow, progressive decline in mental function in which memory, thinking, judgment, and the ability to learn are impaired. |
 | | Doctors diagnose dementia based on the person's age and family history, the development and progression of symptoms, the results of a neurologic examination (see Diagnosis of Brain, Spinal Cord, and Nerve Disorders: Introduction), and the presence of other disorders, such as brain damage due to a stroke or, in alcoholics, undernutrition. |
 | | People with dementia, if sufficiently able, should appoint a health care proxy (who is legally authorized to make treatment decisions on their behalf), and they should discuss health care wishes with their surrogate (proxy) and doctor (see Death and Dying: Legal and Ethical Concerns and Legal and Ethical Issues: Advance Directives). |
| www.merck.com /mmhe/sec06/ch083/ch083c.html (4296 words) |
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