weight based medication drips

In the unit whee I used to work, 50kg was the cutoff and everything ran at the 50kg dose, regardless of weight. The unit where I work now (a self-described state-of-the-art, world class center of excellence) uses weight-based dosing for all patients, even our 80kg linebackers. Fairly often we have to remind a physician (resident) that a 70kg kid should NOT be getting 2.1g of cefazolin because the max adult dose is 2g! Or 700mg vancomycin q6h when the adult dose is 500. An epinephrine infusion might be mixed by an inexperienced nurse so that 50mL of solution contains 21mg of drug, even though the maximum recommended concentration is 3.2mg in 50mL. Problematic.