The Clinical Dementia Assessment (CDR) is used by doctors to evaluate the severity of dementia, based on a five-rating scale and six domains of mental function. It is commonly used to evaluate dementia resulting from Alzheimer’s disease and other forms of dementia. The CDR questionnaire has a high correlation with memory tests and exams such as the Mini-Mental State Examination (MMSE).
Dementia is a form of thinking disorder that affects memory. When a doctor judges that a patient’s mental disability is too severe for the individual to live without supervision, this is known as clinical dementia. Doctors use the Clinical Dementia Assessment (CDR) to assess a patient’s degree of dementia. Other ways to evaluate dementia are memory tests, mental status exams, and problem-solving activities.
The CDR is based on a project on memory and aging created by the Washington University School of Medicine in Missouri. In this project, a five-rating scale is used to rank the severity of dementia. Zero indicates no dementia, 0.5 indicates possible dementia, 1 is mild dementia, 2 is moderate dementia, and 3 is severe dementia.
Six different domains are used to assess mental function. They are memory, orientation, judgment and problem solving, community affairs, home and hobe, personal care. Each domain is given its own row on a graph, with the severity scale running across the top, and each domain has been given a rating. These scores were then added together to produce an overall assessment of dementia. The graph has been provided an overview of an individual’s overall mental competence.
The Clinical Dementia Scoreboard is developed from responses to a 10-page questionnaire. The patient, or the caregiver if he does not respond, answers questions about his ability to understand common instructions. Questions can refer to the current date, ability to handle money, grooming and other factors of daily life.
This rating system has been standardized by clinics and hospitals for rating different types of dementia. It is commonly used to evaluate dementia in the elderly resulting from Alzheimer’s disease. The system can also be used to evaluate other forms of dementia, such as those resulting from alcoholism, Parkinson’s disease or an acquired immune deficiency disease such as AIDS.
Evaluation of clinical dementia is not generally used to evaluate for alterations in consciousness, such as those resulting from head injury or organ toxicity. This is because it was designed to assess mental status regardless of physical condition. The Clinical Dementia Assessment Questionnaire has been found to have a high correlation with memory tests and exams such as the Mini-Mental State Examination (MMSE). For example, it was found that those who scored high on these types of tests also did well on the CDR exam and vice versa.
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