"It would all depend on the situation. For example, getting arterial blood gases can be part of a routine diagnostic approach, or it may be time-sensitive. Things like intubation are always an emergency, and failure to accomplish it not only deprives the patient of its benefits--getting oxygen and preventing aspiration -- but can also traumatize the airway with inflammatory swelling or bleeding. Because I am very well versed in this from my Emergency Medicine residency training, I would owe it to my peer to allow a trial of the procedure. But if the patient is in jeopardy because they were unable to accomplish the procedure, it is my responsibility to politely request to take over and educate my colleague. For a simple procedure that a peer was struggling with, I would take time after our shift to see if they want to learn about it more."