If a patient or research study volunteer is having a blood draw at or near a research facility that can perform this type of experiment on site, time delay doesn’t come into play. But for research ...

Your blood is a delicate mixture. Researchers and clinicians often use blood to learn what’s going on inside our bodies, in part because siphoning off a tube of blood is easier and less painful than ...

The practice of drawing blood has changed very little over the decades. It looks about the same now as it did 50 years ago. That process, however, may be about to get a modern makeover. Several health ...