Hi, I have an assignment for clinicals that I need help with. I was supposed to be in the ER for two days last week, however my son was taken with pnuemonia and I was only able to be there for about 3 hours and wasn't able to get the information that I needed to complete my assignment, so here is what I need to know: How are the Emergency trauma room, treatment room, and cast room different from one another? What is the difference between the emergency room and outpatient department? What are 3 emergency drugs that are used in the ER and what are they used for. I can get everything else I just need help with these, can you please help me?