News Neuroscience

Alzheimer’s blood tests are getting better, but still have a ways to go

The blood tests will not replace other diagnostic evaluations  

A vial of blood is put into a tube rack, with medical images of a brain in the background.

By measuring levels of key proteins in the blood, tests help doctors know whether a person has signs of Alzheimer’s disease in the brain.

Andrew Brookes/Image Source/Getty Images Plus

By Laura Sanders

Alzheimer’s disease is hard to diagnose. But proteins in the blood might provide clarity.