Routine care of tumor patients, as well as the rescue of various critically ill patients and complex technical operations (use of nasopharyngeal irrigator, radiation dermatitis care, PICC catheterization and maintenance) tumor radiotherapy care, radiation dermatitis care, and radiotherapy for nasopharyngeal cancer patients Specialist nursing, pain, nutrition, psychological nursing of patients with radiotherapy, protection of chemotherapy drug extravasation and phlebitis, occupational protection of nuclear radiation