Many of the forms need to be downloaded before you can make edits. I am writing to formally resign from my position as a Registered Nurse at Evergreen Medical Center, effective December 15, 2050.Tips for writing resignation letters for health reasons, parts to include in the letter, and some sample letters. Discover how to craft a professional resignation letter due to illness. A one (1) week notice letter is written notification provided to an employer that an employee will no longer be working with the company within seven (7) days. These letters are simple and to the point. Our forms can help you make your Resignation Letter easily within minutes. But how do you transition from a fulltime job to a PRN job? Most importantly, what should be included in the resignation letter to an employer? Was this document helpful?