In the initial ER scene Dr. Kepner was treating the female MVC victim; she was wearing a trauma gown and running an active trauma with Dr. Pierce. In the next scene she was casually and happily speaking to Dr. Hunt without her trauma gown when a toddler came in who she immediately began treating. The very next scene she was still running the very active MVC trauma and was still wearing the trauma gown.
In the first scene where Alex appears at the conference in the hotel, he holds a manila envelope, and still does after rising from the couch to follow the other doctor. In the next part of the scene, just before he walks to the bar to continue following the doctor, the envelope disappears.
On the O.R board they spelled Dr. Richard Webber wrong. They only used one B, (Weber. R)