Character mistake: When Elliot asks Kelso if there is a special way to communicate with the nurses. Kelso grabs Elliot by the arm and his hand being placed on her sleeve and pull her to the side while still holding her arm, when the camera angels changes from the close-up his hand placement is lower and not on Elliot's sleeve but on her skin. (00:07:00 - 00:07:40)
My Hero (2) - S1-E23
Character mistake: Spelling mistakes on the medical board! they've spelled "appendix" and "tonsillectomy" wrong in a hospital. (00:03:25)
Answer: No, it was a fake, they used a stamp.
It is real.