Have you personally experienced racism at work as a nurse? What did you do about it?

Yes. The most important thing is to remain calm. Next steps determine if you want to stay with current employer or move on. If you decide to stay, then start keeping documentation (not documented, did not happen) of everything that has happened to you. (Speak with lawyer in severe cases.) Follow chain of command in reporting injustice. If nothing is resolved move on it is not worth your emotional well being.