"Rn" is an abbreviation for "right now." It is often used in text messages or online chats to express that something is happening at the present moment or needs immediate attention. Full definition
Before setting yourself to the task of writing an objective section for RN resume, it is crucial to understand when and why your resume needs one. (coverlettersandresume.com)
As you can see in the nursing RN resume sample, there are several standard sections you should include in your own document. (resume-now.com)
I was also a Mother - Infant RN in a hospital. (returntonow.net)