Add Yahoo as a preferred source to see more of our stories on Google. Grail's Galleri test screens for more than 50 different types of cancer from a single blood draw. (Getty Images) (Getty Images) If ...

You can consume nothing but water for at least 8 hours before a fasting glucose test. You may also need to follow a low carb diet and avoid exercise for some time before. A fasting glucose test ...

Testing a person’s blood for a type of protein called phosphorylated tau, or p-tau, could be used to screen for Alzheimer’s disease with “high accuracy,” even before symptoms begin to show, a new ...

A nuclear stress test shows how well blood travels through your heart at rest and exertion. Doctors often use it to check for coronary artery disease (CAD). Research suggests nuclear stress testing ...

The US Food and Drug Administration has approved a blood test to be used for colorectal cancer screening among average-risk adults 45 and older. The maker of the test, Palo Alto, California-based ...

The test may make it easier to identify whether people with memory and thinking problems have Alzheimer’s or not. By Pam Belluck A blood test that can help diagnose Alzheimer’s disease has received ...