I am a nursing student, my first rotation this semester was on the oncology floor. There were two other pg nurses working there as well. The rule of thumb put forth to me was I could not be exposed to anyone who had received radiation therapy for 48 hours, and after that, should not touch any of their fluids, the oral chemo the same. The other nurses who worked on the floor followed the same guidelines, fyi no chemo was actually administered on this floor, they went to another site for treatment. Most were there for another illness and I chose to not take any patients on chemo precautions. If anyone had had the radiation "seed" which involves continual release, I would definitely avoid them.