I've never been in this situation personally. I know my mom has doctor's restrictions related to her work. My understanding of her situation is my mom explained to the doctor the various duties of her job, then the doctor wrote a letter for my mom to present to her company explaining the things she could not do. They include things like a weight restriction on lifting and a limit on overtime hours. It is my understanding that the company is to make every effort to comply with the dr's order in finding you something within your restrictions to do.