Add Yahoo as a preferred source to see more of our stories on Google. Roche's Elecsys pTau181 test is the second blood-based biomarker test to receive FDA clearance for Alzheimer’s disease this year. ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Alzheimer’s disease, the most common form of dementia affecting more than three million Americans a year, ...

A water deprivation test checks how the body responds to several hours without water intake. A doctor may request this test to help diagnose conditions such as arginine vasopressin disorder (AVD).

Roche's Elecsys pTau181 test is the second blood-based biomarker test to receive FDA clearance for Alzheimer’s disease this year. - Sarah Silbiger/Getty Images The US Food and Drug Administration has ...

The US Food and Drug Administration has given clearance to another blood test to help assess Alzheimer's disease and other causes of cognitive decline, providing a broader understanding of when the ...