They will also apply a tourniquet to your upper arm in order to make the blood draw site more visible. Then they will place a needle in your arm and pull out a small sample of blood into a vial.

The Food and Drug Administration (FDA) announced Friday it had cleared a new test to help diagnose adults with Alzheimer’s ...

The Food and Drug Administration May 16 announced it cleared the first blood test to diagnose Alzheimer’s disease.