Medically reviewed by Gagandeep Brar, MD The red cell distribution width (RDW) blood test measures differences in the volume ...

Unlike with a traditional blood draw, the patient does not see the needle go into the arm nor the tubes of blood. The process takes about two minutes and has a 95% success rate on the first attempt.

Austin-area residents can make a life-saving impact by donating O-type blood amid a current shortage. Find out how and where ...

Medically reviewed by Archana Sharma, DO A mean corpuscular volume (MCV) test is a blood test that measures the size and ...

Men who had given blood more than 100 times in their life were more likely to have blood cells carrying certain beneficial mutations, suggesting that donating blood promotes the growth of these cells ...

The practice of drawing blood has changed very little over the decades. It looks about the same now as it did 50 years ago.