I’m a new grad working in acute care. When diluting IV push meds, I was told to use a prefilled 10ml NS syringe and to waste however many mls of the drug I needed. Ex, fentanyl is 100mcg/2ml so waste 2ml of NS to put into the syringe. My coworker then told me the concentration would be 10mcg/ml. Wouldn’t you need to put the med in 12ml of NS to make it 10mcg/ml? Probably overthinking this.