It's to reduce peer pressure - we used to have those stickers here, too. They haven't used them in a couple of years, now.
a)Some people put the wrong one on - a phlebotomist told me about a grandfather who was donating because his grandson had been in a bad wreck - he put the wrong one on - she saw him do it.
b) If you're around the bar codes enough, you can tell which one was applied w/out scanning.
a)Some people put the wrong one on - a phlebotomist told me about a grandfather who was donating because his grandson had been in a bad wreck - he put the wrong one on - she saw him do it.
b) If you're around the bar codes enough, you can tell which one was applied w/out scanning.

