Chances of getting hiv if one is pricked with a used lancet needle?

Relatively low But: still should get tested now and in about 3 mos. and use protection in the meantime. Lancets are not hollow so very little blood would be on it if any. Chances are the HIV person is most likely on medication and undetectable/unable to transmit the virus. You should call your MD and ask if they want to put you on PEP (Post Exposure Prophylaxsis) or feel you need other tests or vaccines.