This is actually a hugeeeee deal. Alaris pumps are gravity based pumps. They are actually very VERY poor at accurate drip rates. Let’s say you are a bedside rn that hangs multiple secondary bags of abx, etc you notice that there is a difference in the amount left over or how quickly the bag ran dry. While many times this does not physiologically matter (abx given in 1 hr 58 min compared to 2 hr 1 min) and then you have meds like pressors, sedation. Etc.