I work in a Level I Trauma teaching hospital. Our traumas run like this:
You have two nurses assigned for trauma during the entire shift. One nurse is the circulator, the other nurse is the scribe. You also have techs assigned to get the pt on the monitor, cut off clothes, help transport, run labs and get blood.
Depending on the severity of the trauma, trauma surgeons may be called in or not. We classify our traumas into two cateogories, Class A or Class B. Class A would be considered stab wound/GSW to chest, abdomen, head, a trauma code, or a MVA rollover with a passenger dead on scene. A Class B would be a GSW to thigh, lower extremities, a fall greater than 20 feet, pedrestrian vs car. Trauma surgeons are only paged to Class A traumas, however a Class B can be upgraded to a Class A and we will paged them accordingly.
While in a trauma, I pay attention to my resident running it. If I am scribing the event, I ask my residents questions, such as which drugs he/she want drawn up, what interventions they would like, etc. If Trauma surgery comes down and states "we need to take this pt to the OR now!", I will make sure our trauma labs have been drawn for cross and match, cross and screen and if not, I will make it known to the surgeon those labs have not been drawn as of yet. If they havent been drawn and the trauma surgeon says we are moving NOW, I make sure the cirulator goes up to the OR with the pt and draw the labs in the OR.
We do have ER attendings in our traumas, but they mostly stand back and guide the residents. For the most part, our Trauma surgeons and ER docs work well together.