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

A Dutch firm's AI-powered machines that draw blood with more accuracy than humans without the patient seeing the needle to be ...

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.

Several health systems across the U.S. — including Northwestern Medicine — are gearing up to try a new way of drawing blood: using a robot.