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How accurate are tests for Alzheimer's disease?

Because there is no simple or single test available to diagnose Alzheimer's disease, it sometimes goes undiagnosed and is often misdiagnosed. However, according to the Alzheimer's Association, a doctor experienced in cognitive evaluations using validated clinical criteria can diagnose Alzheimer's during life with more than 90 percent accuracy compared to autopsy diagnosis. A brain autopsy after death, during which the unique plaques and twisted fibers can be seen, is the only 100 percent certain way to diagnose Alzheimer's disease. If you suspect someone has had Alzheimer's, an autopsy should be considered because confirming the cause of dementia can be important for the healthcare of future generations.

Cognitive functioning tests for Alzheimer’s disease is the best way to rule out physical disorders that can cause dementia.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.