NEEDLES ARE NOT RE-USED.
And, just for clarification purposes, your finger was poked with a "lancet" which is just a tiny, fine blade, it is not hollow, nor is it a needle. Lancets cannot be re-used, they are a one-time use only product.
I hope this New Incident is not one of a string of incidents, you don't need to worry about these no risk situations, remember:
Risk for HIV:
-unprotected anal intercourse
-unprotected vaginal intercourse
-sharing IV drug works (also high risk for hepatitis!)
A nurse would never use a needle twice. No risk.