So, I had to take a TB test at work which was administered by the nurse onsite. Well, she withdrew the substance from the vial to test me with, stuck me with it, and then the needle got displaced and had to redo the test by using the SAME needle she had just stuck me with to withdraw more from the vial and stuck me again. Is this safe to do, since she uses the vial for everyone? Shouldn't she have used a new needle????