It relates a person with its role in a health context. has health role The patient who participates to the Action. has patient The roles of the persons involved in the assistive context. Health Role A person trained to care for the sick or infirm, especially in a hospital. Nurse A person who participates in a healthcare act while playing the patient role. Patient A doctor; a person who has been educated, trained, and licensed to practice the art and science of medicine. Physician