I reassured him and sent him to get another blood specimen drawn without a tourniquet. Why? Because I suspected that the ...

Strokes are a medical emergency, yet imaging can capture only snapshots of how brain damage develops in the hours and days ...

Consumers simply prick a finger, place a drop of blood on a sample card, sealed into an envelope (provided) and mail it to ...

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 ...

Medically reviewed by Anju Goel, MD You may need an MPV test if you show symptoms that suggest an issue with your platelet ...