A study in the Lancet looked at whether a blood test could indicate the most common form of dementia and diagnose people decades before symptoms are clear enough to be identified by medics ...

Last month, The US Food and Drug Administration approved a new blood test for assisting the diagnosis of Alzheimer’s disease. Produced by Roche, Elecsys pTau181 measures the concentration of a ...

The promising new test is better at detecting Alzheimer’s disease than physicians—but experts don’t recommend it for everyone. Being able to diagnose Alzheimer's with a blood test would be a ...

WASHINGTON (AP) — New blood tests could help doctors diagnose Alzheimer’s disease faster and more accurately, researchers reported Sunday — but some appear to work far better than others. It’s tricky ...