How Possible Or Definite Alzheimer's Disease Is Diagnosed

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    Possible alzheimer's disease is diagnosed when the patient has lost memory very slowly and laboratory and urine testing find no other physical reasons to account for the memory loss. Definite alzheimer's disease is diagnosed reliably only by autopsy. The presence of significant senile plaques and neurofibrillary tangles in the brain confirms the clinical diagnosis of alzheimer's disease. Studies have shown that trained clinicians can diagnose alzheimer's disease with about a 90% accuracy, even without an autopsy to confirm actual alzheimer's brain changes.