Nurses are only human and there is no way anyone can expect that every nurse understands every single thing there is about medicine. People make mistakes, and the same is true about doctors and nurses.
There is a difference, however, between mistakes and obvious negligence. In the case that a nurse makes a mistake, apologizes for it and take steps to make sure it doesn't happen again, most people would agree that they deserve to continue working in the medical field.However, there are some people who would threaten a nurse's license for errors, even if those errors were not life-threatening for a patient.
What should you do if you face the loss of your nursing license?
To start with, you need to understand exactly what happened and why you are threatened. Did you really make a mistake that could cost you your license? Is the patient alleging mistakes that were not truly mistakes but a result of common side effects or complications?
Once you know why the patient is upset, it's easier to address the situation with them if you choose to do so. Whenever you are defending your license, it's a good idea to get people on your side. For example, if you have witnesses that can explain why you did what you did and what any other nurse would have done in your situation, that will have a substantial impact during a hearing. Your attorney can help you prepare the right documents to make sure you are prepared to fight for your license.