Please, write a discussion on the following topic: Why are nu

Please, write a discussion on the following topic: Why are nursing theories necessary to nursing practice, education, research, and administration? Primary reference must be from peer-reviewed NURSING journals less than 5 y/o. One other reference must be from National professional, or governmental, or educational organizations. Supplemental references (.org, .gov, and .edu) and the course textbook:    ISBN: 9780135135839 George, J. (2011). Nursing theories: The base for professional practice (6thed.). Boston: Pearson.  may be used as supplemental references. APA format required.