Hey seasoned ER Nurses! My questions are: 1. What does the team names Alpha, Delta, etc. mean in the ER? 2. What are the notification systems does your ED use to receive notifications from paramedics? 3. What books were the best to read for the ED? 4. What books were the best to read for the CEN and ENPC tests? Thanks for caring enough to answer these questions. I find that Google can't give me all the answers I need.