Diagnostic Tests for Dementia


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Tests and diagnosis discussion for Dementia: Dementia is a clinical diagnosis made by a physician. Although there are a number of different checklists available, the "Diagnostic and Statistical Manual-IV" is the most widely accepted list of criteria for dementia. A patient, who has an acquired problem of memory, cognitive ability, and problems with functional abilities, may have a dementia syndrome. The patient must not have a confusional state, such as delirium or drug intoxication, at the time of diagnosis. A skilled physician can apply these criteria to detect the presence of dementia, but some physicians may be far more skilled than others in this regard. 1

People who are worried about memory problems should see their doctor. If the doctor believes that the problem is serious, then a thorough physical, neurological, and psychiatric evaluation may be recommended. A complete medical examination for memory loss may include gathering information about the person's medical history, including use of prescription and over-the-counter medicines, diet, past medical problems, and general health. Because a correct diagnosis depends on recalling these details accurately, the doctor also may ask a family member for information about the person.

Tests of blood and urine may be done to help the doctor find any problems. There are also tests of mental abilities (tests of memory, problem solving, counting, and language). A brain CT scan may assist the doctor in ruling out a curable disorder. A scan also may show signs of normal age-related changes in the brain. It may be necessary to have another scan at a later date to see if there have been further changes in the brain.

Alzheimer's disease and multi-infarct dementia can exist together, making it hard for the doctor to diagnose either one specifically. Scientists once thought that multi-infarct dementia and other types of vascular dementia caused most cases of irreversible mental impairment. They now believe that most older people with irreversible dementia have Alzheimer's disease. 2

Diagnosis of Dementia: medical news summaries: The following medical news items are relevant to diagnosis of Dementia:



Footnotes:
1. excerpt from DEMENTIA: NWHIC
2. excerpt from Forgetfulness It's Not Always What You Think - Age Page - Health Information: NIA

Last revision: July 1, 2003

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