Different points of view of each group contribute to establish a level on which each group functions or does not function, and to see how interaction in the group and interaction of that group with the society has an influence in the efficiency of medical care.
The importance of each group can be observed through close analysis of its interaction with society and itself. Therefore, two important aspects can be differentiated. The micro-level interaction in the groups explains the working conditions, while at a macro level it explains their purpose in society and the potentials and problems of globalization.
Although modern nursing was created a little more than a hundred years ago, mostly by the enormous contribution of Florence Nightingale during the Crimean War, the foundations of nursing were laid many centuries before the publication of the first nursing guidelines. Nursing and its formation as a science is closely related to and must be placed within a sociological perspective; the desire to help the sick and injured is a continuing sociological phenomena, dating back to the formation of the first civilizations. A fine example is the effort of nuns and other clergy during the middle ages, which essentially performed the duties of modern nurses. Society and science may have changed over the ages, but the necessity for a specific medical group that cares, both for the physical and psychological well-being, of the sick is always present. The 1.3 million registered nurses working in hospitals in the United States, and the ever growing demand is a natural results of the necessity of nurses (Steinbrook, 2002).
Much research is done into the micro-level interaction of nurses and nursing groups in hospitals in order to determine the effectives of the latter. Most of the research was performed through participation observation, and according to one research, it was determined that the hours of nursing care provided by registered nurses is proportional with better care for hospitalized patients (Steinbrook, 2002). Also, the larger number of registered-nurse-hours per day or licensed-nurse-hours per day is associated with a lower rate of failure to rescue critical patients. Studies have also reported a correlation between higher levels of staffing by nurses and lower mortality and lower rates of other outcomes. According to another research, however, conducted amongst surgical patients, no evidence was found of an association between in-hospital mortality and the proportion of registered-nurse-hours, leading to the conclusion that mortality is not connected with good care of nurses but with other health care group. If we observe two different hospitals, where we can determine the symbolic interaction between different nursing groups, we are supposed to consider other unmeasured factors with higher levels of staffing by registered nurses or other unmeasured characteristics of the hospitals' nursing work force. The level of staffing by nurses is an incomplete measure of the quality of nursing care in hospitals. Other factors, such as effective communication between nurses and physicians and a positive work environment, have been found to influence patients' outcomes. The outcomes for which we found