The feedback has to be supportive, non-punitive, and not embarrassing. I would start with one thing your'e trying to improve and don't pick something useless like IV success rates. It should start with system surveillance. For example, you could pull all of your adenosine calls for 2015 and review them to see if adenosine was given appropriately. If you identify opportunities for improvement, send out an educational PowerPoint for the paramedics to review, then start tracking adenosine use. If someone does a good job, feed it back to the line as a case study and say, "Good job!" If you find a problem you can call the paramedic in charge and say "Hey, George, it's Tom, how are you? Do you have a minute to talk about a call? I see you guys gave adenosine last week. We don't do that very often! Can you walk me through it?" Then AFTER the paramedic explains his thought process (sometimes they will tell you "yeah I know Dr. so-and-so told me it was atrial fibrillation....) you can say, "Okay, cool. So adenosine is for REGULAR tachycardias. It's a good reminder for all of us." If it's not supportive, and if quality is not improving, then it's not QI. It's something else and probably not good. Good luck!