Heres two courses from NOVA university that should tell you what nursing is:
Introduction to Professional Nursing
This course introduces the student to the roles of the professional nurse including provider of care, manager of care, advocate, teacher, researcher, leader and member of the profession. The history of nursing and how society views the nursing profession are discussed. The student is introduced to the concepts of the Neuman's Systems Model as a theory of practice, as well as ethical and legal principles, medical terminology, socio-cultural concepts, and political principles guiding the profession. (2 credit hours: 2 didactic/0 clinical)
Foundations of Professional Nursing Practice
This course introduces the entry level student to the culture and practice of nursing. It examines the holistic concepts of individuals, environment, health and nursing. It focuses on system variables of an individual including the physiological, psychological, social, cultural, cognitive and spiritual domains. The important themes of primary, secondary, and tertiary prevention-as-intervention modalities; the client system's reaction to interpersonal, intrapersonal and extrapersonal stressors; and critical thinking are integrated throughout the course to prepare the students for practice. Students are introduced to health promotion, the legal and ethical issues, and contemporary trends in health care that impact nursing practice. The course provides fundamental nursing concepts, skills and techniques of nursing practice and a firm foundation for more advanced areas of study. (6 credits: 3 didactic/3 clinical)
From NOVA University
When I was getting my masters in nursing we used the Neuman Systems Model. I actually liked it as I understood the purpose of theory and knew that all professions are theory driven. It might have been a bit much for me and a partner to have to develop a new model of nursing but it certainly didnt kill me and I didnt waste time whining.
A theory is a group of related concepts that propose action that guide practice. A nursing theory is a set of concepts, definitions, relationships, and assumptions or propositions derived from nursing models or from other disciplines and project a purposive, systematic view of phenomena by designing specific inter-relationships among concepts for the purposes of describing, explaining, predicting, and /or prescribing.
http://www.currentnursing.com/nursing_theory/application_Betty_Neuman's_model.htm
This is about psychological theories but is useful to increase your knowledge:
There are numerous psychological theories that are used to explain and predict a wide variety of behaviors. What exactly is the purpose of having so many psychological theories? These theories serve a number of important purposes.
Theories provide a framework for understanding human behavior, thought, and development. By having a broad base of understanding about the how's and why's of human behavior, we can better understand ourselves and others.
Theories create a basis for future research. Researchers use theories to form hypotheses that can then be tested.
Theories are dynamic and always changing. As new discoveries are made, theories are modified and adapted to account for new information.
http://psychology.about.com/od/developmentecourse/a/dev_purpose.htm
Now, if you are bad-mouthing theories and going the PA or MD route to avoid them you might want to ask someone if the words medical & theories ever appear together.
Any program that offers the masters degree should add courses that many of you are bitching about. There is a reason for that but Ill let you figure it out.
Trade school teaches you just what you need to do to do a specialized job. They probably dont even teach you how to spell theory!