The U.S. Food and Drug Administration (FDA) has cleared marketing for a new blood test to diagnose Alzheimer's disease in people who are already exhibiting symptoms.This new test is the first blood test ever approved for diagnostics of the disease,

The US Food and Drug Administration has given marketing clearance to a blood test to help diagnose Alzheimer’s disease, making the test the first to get signoff to aid in the early detection of the disease in the United States.