Dear Dr. Roach: While most aspects of modern medical care don’t bother me, I despise blood draws from either arm. I always faint when it’s done, and I feel awful afterward for what seems like a long ...

CHICAGO — 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.

EXPLAINS HOW IT WORKS. IT’S NOT UNCOMMON FOR POLICE OFFICERS TO HEAD TO AN EMERGENCY DEPARTMENT TO GET BLOOD DRAWN FROM A SUSPECTED IMPAIRED DRIVER, BUT THEY SAY THERE COULD BE A BETTER WAY. IT’S ...