Q: The physician orders an IV of Pitocin 20 units in 1,000 ml of normal saline to run at 600 ml/hr. How many gtt/min would the infusion rate be for tubing that delivers 10 gtt/min? I have trouble figuring out how to calculate to gtt/min. It showed the answer (100) when I got it wrong, but I still do not get how to get to that answer. I need help. I'm so confused with this one.