At the plasma centers it's the phlebs who are doing the venipunctures for the donations. The nurse or if there's a hired paramedic are really only there to determine suitability of donors. And yes...
This I know is usually a great help in any other setting, however with plasma centers this is not something we're too do as it is not in the centers SOP. Really we can only apply cold compresses fan...
I work with a plasma center as a nurse and honestly don't get to stick or use my IV skills period unless an adverse event. I recently had to try and attempt an IV using a butterfly needle with a line...