Heparin Drip problems are extremely confusing when you start doing them. It took me a long time to actually understand what I was doing on these. I found this video on how to do the calculations. This guy does a fantastic job explaining the process from beginning to end. The only thing that I do not agree with is the fact that he only rounds the mL/hr to the 10ths place for an IV pump. Our school teaches us to round to a whole number whether it is gtts/min or mL/hr.