PPD Testing

I have a few questions about PPD testing. I went to apply for a job at a major teaching hospital and before I can be considered for a job I have to first have a PPD test done. I am used to being hired for the job and then having to have a PPD test done and the hospital PAYS for it. This hospital required that I pay for it and I debated whether I wanted to work there. It wasn't so much that it cost $20, it was the fact that if the hospital requires it and isn't willing to spend the money on something preventive, what can I expect from them if I get injured on the job? Is it normal for a hospital not to pay for the test? I finally sucked it up and had it done today. My insurance said the only way they would pay for it was if I was a drug user or had HIV which to me is a surprise since you can get TB if you are part of a susceptible population.

My other concern has to do with the statement the nurse giving me the PPD made which is that I shouldn't have the test done yearly (or every 6 months) because I was going to have a false positive reaction eventually from being tested. This is a concern of mine and I guess a concern of others on this board from old posts I read but seeing how HCP get tested so often I would think this is a very low risk. I was really surprised she made this statement. Has anyone else ever heard of this? I didn't think you could get TB from a PPD or get a false positive due to too many tests over the years. (By the way, I am assuming it was a nurse who did the test but I am not positive.)