Memory Clinics U.S.
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The Seven Stages Of Alzheimer's Disease

    Barry Reisberg,M.D. and associates at the New York University Medical Center Aging and Dementia Research Center developed this scale which charts the decline of people with alzheimer's disease. The FAST scale has seven stages: 1 which is normal adult,2 which is normal older adult, 3 which is early alzheimer's disease, 4 which is mild alzheimer's disease, 5 which is moderate alzheimer's disease, 6 which is moderately severe alzheimer's disease, and 7 which is severe alzheimer's disease. FAST stage 1 is the normal adult with no cognitive decline. FAST stage 2 is the normal older adult with very mild memory loss. Stage 3 is early alzheimer's disease. Here memory loss becomes apparent to co-workers and family. The patient may be unable to remember names of persons just introduced to them. Stage 4 is mild alzheimer's disease. Persons in this stage may have difficulty with finances, counting money, and travel to new locations. Memory loss increases. The person's knowledge of current and recent events decreases. Stage 5 is moderate alzheimer's disease. In this stage, the person needs more help to survive. They do not need assistance with toileting or eating, but do need help choosing clothing. The person displays increased difficulty with serial subtraction. The patient may not know the date and year or where they live. However, they do know who they are and the names of their family and friends. Stage 6 is moderately severe alzheimer's disease. The person may begin to forget the names of family members or friends. The person requires more assistance with activities of daily living, such as bathing, toileting, and eating. Patients in this stage may develop delusions, hallucinations, or obsessions. Patients show increased anxiety and may become violent. The person in this stage begins to sleep during the day and stay awake at night. Stage 6 is severe alzheimer's disease. In this stage, all speech is lost. Patients lose urinary and bowel control. They lose the ability to walk. Most become bedridden and die of sepsis or pneumonia.