Hey Everyone, I was wondering if anyone could tell me how often I could get a TB test? Here's why I ask. I'm a recent graduate and just started working as a LPN, today was my first day on the new job actually. I was an aide at my old job (which was less than 2 weeks ago). I obviously had to get a TB test today for my new job. However, I received one about 2 weeks ago from my old job (just b/c I was due for it again). Now, I've NEVER had a positive TB test, but today after I get home from work, I look down and my arm is a little red and a little raised and I'm freaking out! Could I have somehow received the antibody for TB recently and not know it, could I just be having some kind of reaction that I've never had before, or is it possible that I had these two TB tests, too close together!? Please help