Nurses:

nurse (occasionally medic[1]) is a healthcare professional, who along with other health care professionals, is responsible for the treatment, safety, and recovery of acutely or chronically ill or injured people, health maintenance of the healthy, and treatment of life-threatening emergencies in a wide range of health care settings.
Nurses may also be involved in medical and nursing research and perform a wide range of non-clinical functions necessary to the delivery of health care. Nurses also provide care at birth and death. There is currently a shortage of nurses in the United Kingdom, United States and a number of other developed countries.
he nursing career does not vary though out. Typically there are several distinct levels of nursing practitioner distinguished by scope of practice. The major distinction is between task-based nursing and professional nursing. Nurses throughout the world are increasingly employed as registered nurses, advanced practice nurses, clinical nurse specialists and nurse practitioners. At the top of the educational ladder is the doctoral-prepared nurse. Nurses may gain a PhD or another doctoral degree, specializing in research, clinical nursing, and so forth. These nurses practice nursing, teach nursing, and carry out nursing research.
In various parts of the world, the educational background for nurses varies widely. In some parts of eastern Europe, nurses are high school graduates with twelve to eighteen months of training. In contrast, Chile requires any registered nurse to have at least a bachelor's degree.