Hi doctor, I got a routine blood checkup! the thing is that I missed watching phlebotomist that weather he was using a new needle or n ot. I know in india no one reuses vacutainer needles. But if by human error if someone uses it. Can it become blocked in 10 min. I doubt that needle was reused. By I am sure they was a gap of 10 min between patient. I read you said the the needle gets block after used once! please reply asap. Thanks in advance.