Nursing is a profession within the health care sector focused on the care of individuals, families, and communities so they may attain, maintain, or recover optimal health and quality of life.
Nurses may be differentiated from other health care providers by their approach to patient care, training, and scope of practice. Nurses practice in a wide diversity of practice areas with a different scope of practice and level of prescriber authority in each. Many nurses provide care within the ordering scope of physicians, and this traditional role has come to shape the historic public image of nurses as care providers. However, nurses are permitted by most jurisdictions to practice independently in a variety of settings depending on training level. In the postwar period, nurse education has undergone a process of diversification towards advanced and specialized credentials, and many of the traditional regulations and provider roles are changing.
The American Nurses Association (ANA) states nursing is the protection, promotion, and optimization of health and abilities, prevention of illness and injury, alleviation of suffering through the diagnosis and treatment of human response, and advocacy in the care of individuals, families, communities, and populations.
Traditional nursing
Before the foundation of modern nursing, nuns and the military often provided nursing-like services.[2] The Christian churches have been long term patrons of nursing and influential in the development of the ethos of modern nursing. Elsewhere, other nursing traditions developed, such as in Islam
From its earliest days, and following the edicts of Jesus, Christianity had encouraged its devotees to tend the sick. Priests were often also physicians. According to the historian Geoffrey Blainey, while pagan religions seldom offered help to the infirm, the early Christians were willing to nurse the sick and take food to them - notably during the small pox epidemic of AD 165-180 and the