New Blood Test for Alzheimer’s Could Help You Catch It Early—Here’s How

The FDA has just cleared a new blood test for Alzheimer’s—and it could be a game changer. In this video, we break down how the Lumipulse G pTau217/β-Amyloid 1-42 Plasma Ratio test works, what it tells doctors, and why it matters for early diagnosis. For the first time, doctors may be able to detect signs of Alzheimer’s with a simple blood draw—no spinal taps or expensive brain scans required. This means earlier detection, faster answers, and greater access to care—especially in primary care settings. But what does the test measure? Can it be used on its own? And how close are we to diagnosing Alzheimer’s before symptoms even begin? Whether you're concerned about memory loss, caring for a loved one, or simply curious about this new Alzheimer’s blood test, this video explains everything you need to know—in plain language.