It isn't that the docs or nurses are ill-tempered and burned out. The truth is that any doc or nurse will tell you that their tech is what makes or breaks their day. Quite simply, the nurses are too busy chasing down doctors for authorization so they can't chart patient vitals every hour. Also nurses didn't go through nursing school to wipe down drunk homeless people and fetch them blankets.The doctors are quite a bit more demanding. They want techs to assist with many things such as sutures, EKGs, bandaging/wound cleaning, and splinting broken bones. A tech who is slow or new can't get all of this done in time and THAT is what will drive a nurse crazy.
In hindsight though, the orientation introduces you to the fact paced environment and gives you the knowledge of your scope of practice. I was exhausted after 12 hour running around up on my feet, but you bet I went home and hit my books on splinting bones, bandaging wounds, and running EKGs that night.