We used this guide in our PALS class and I loved it! It was much easier to use than the Broslow tape. Some of the nurses had tried to get this added to our crash carts and our E.R. director declined stating "my nurses know how to calculate drug dosages". I have been a critical care and E.R. nurse for 18 years and I am not good at math under pressure. No one should be calculating complex weight based drug dosages under pressure, it is the perfect storm for a drug error to occur. So, I am buying my own and will be leaving it our resuscitation room. We'll just say the drug fairy left it there. Thanks for creating a great tool! -Nancy, R.N.