Doubt why? There is no doubt that there is a best practice way to do this! It does require an understanding of physics,pharmacology and nursing. I do not like to guess or take chances when I am infusing anything I would prefer what evidence suggests is the best way to do it. I realize that in nursing/medicice that sometimes you have to make things work until you can do it the best way. We had to give levophed peripherally until we could get there to place the PICC the other night plus countless other examples that I can give.