A Blood Test Accurately Diagnosed Alzheimer’s 90% of the Time, Study Finds
It was much more accurate than primary care doctors using cognitive tests and CT scans. The findings could speed the quest for an affordable and accessible way to diagnose patients with memory problems.
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![A colored transmission electron micrograph of the nerve cell of the brain of a patient with Alzheimer’s disease showing aggregates of the protein tau in green. The study used a blood test that focuses on a form of that protein.](https://cdn.statically.io/img/static01.nyt.com/images/2024/07/28/science/28AlzheimersBloodTest/28AlzheimersBloodTest-videoLarge.jpg?auto=webp)