i don't think so. Although this has several answers. First of all imo you have to develop a good relationship with the doctors, and also deliver good quality care to their patients. Second you have to be willing to explain your thinking to the doctors, especially when working night shift. Third you have to know when to not take no for an answer. Fourth, it is always ALWAYS important to document your conversations with physicians, but especially so when you disagree with the physician's course of action.
Under no circumstances do you tell a patient that their physician is wrong and to seek a second opinion. You i'm sure would be fired. You can however say, I can see you're concerned about xx, it is within your right to request a second opinion if that will help make your decision easier/put your mind at ease, etc. But it has to be the patient's choice, you can only ensure they know that they have that right.