Development of Nursing Theories | ||||||||
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Introduction
Definition Concepts are basically vehicles of thought that involve images. Concepts are words that describe objects, properties, or events & are basic components of theory. Types:
Definitions
Importance of nursing theories
The characteristics of theories Theories are:
Basic processes in the development of nursing theories Nursing theories are often based on & influenced by broadly applicable processes & theories. Following theories are basic to many nursing concepts. General System Theory It describes how to break whole things into parts & then to learn how the parts work together in “systems”. These concepts may be applied to different kinds of systems, e.g. Molecules in chemistry, cultures in sociology, and organs in Anatomy & Health in Nursing. Adaptation Theory It defines adaptation as the adjustment of living matter to other living things & to environmental conditions. Adaptation is a continuously occurring process that effects change & involves interaction & response. Human adaptation occurs on three levels :
Developmental Theory
Common concepts in nursing theories Four concepts common in nursing theory that influence & determine nursing practice are:
Each of these concepts is usually defined & described by a nursing theorist, often uniquely; although these concepts are common to all nursing theories. Of the four concepts, the most important is that of the person. The focus of nursing, regardless of definition or theory, is the person. Historical perspectives and key concepts
Classification of nursing theories A. Depending On Function (Polit et al 2001)
B. Depending on the Generalisability of their principles
C. Principles of the discipline can be identified.
D. Based on the philosophical underpinnings of the theories
1. “Needs” theories These theories are based around helping individuals to fulfill their physical and mental needs. Needs theories have been criticized for relying too much on the medical model of health and placing the patient in an overtly dependent position. 2.“Interaction” theories As described by Peplau (1988), these theories revolve around the relationships nurses form with patients.
3. “Outcome” theories"
4. “Humanistic” Theories Humanistic theories developed in response to the psychoanalytic thought that a person’s destiny was determined early in life.
Models of nursing A model, as an abstraction of reality, provides a way to visualize reality to simplify thinking.
According to Fawcett (2000),
Four concepts are generally considered central to the discipline of nursing: the person who receives nursing care (the patient or client); the environment (society); nursinghealth. These four concepts form a metaparadigm of nursing. (goals, roles, functions); and The term metaparadigm comes from the Greek prefix “meta,” which means more comprehensive or transcending, and the word Greek word “paradigm,” which means a philosophical or theoretical framework of a discipline upon which all theories, laws, and generalizations are formulated (Merriam-Webster’s Collegiate Dictionary, 1994). Categories of Conceptual Models Ten conceptual models of nursing have been classified according to two criteria:
1.Systems Theory as a Framework
General systems theory states
An example of systems interaction
Two nursing models based on systems theory:
Major Concepts as Defined in King’s Model
Imogene King’s Systems Interaction Model In interaction model, the purpose of nursing is to help people attain, maintain, or restore health. King’s model conceptualizes three levels of dynamic interacting systems.
Betty Neuman’s Health Care Systems Model Betty Neuman specifies that the purpose of nursing is to facilitate optimal client system stability.
Neuman’s model, organized around stress reduction, is concerned primarily with how stress and the reactions to stress affect the development and maintenance of health.
“Ideally the five variables function harmoniously or are stable in relation to internal and external environmental stressor influences” (Neuman, 2002).
Stressors may be of three types:
Resistance to stressors is provided by a flexible line of defense, a dynamic protective buffer made up of all variables affecting a person at any given moment the person’s resistance to any given stressor or stressors. If the flexible line of defense is no longer able to protect the person against a stressor, the stressor breaks through, disturbs the person’s equilibrium, and triggers a reaction. The reaction may lead toward restoration of balance or toward death. Neuman intends for the nurse to “assist clients to retain, attain, or maintain optimal system stability” (Neuman, 1996). Thus, health (wellness) seems to be related to dynamic equilibrium of the normal line of defense, where stressors are successfully overcome or avoided by the flexible line of defense. Neuman defines illness as “a state of insufficiency with disrupting needs unsatisfied” (Neuman, 2002). Illness appears to be a separate state when a stressor breaks through the normal line of defense and causes a reaction with the person’s lines of resistance. Stress/Adaptation Theory as a Framework In contrast to systems theory, stress and adaptation theories view change caused by person–environment interaction in terms of cause and effect. The person must adjust to environmental changes to avoid disturbing a balanced existence. Adaptation theory provides a way to understand both how the balance is maintained and the possible effects of disturbed equilibrium. This theory has been widely applied to explain, predict, and control biologic (physiologic and psychological) phenomenon. Criticisms of nursing theories To understand why nursing theory is generally neglected on the wards it is necessary to take a closer look at the main criticisms of nursing theory and the role that nurses play in contributing to its lack of prevalence in practice. Summarization
Conclusion Theory and practice are related. A theory presents a systematic way of understanding events or situations.It is a set of concepts, definitions, and propositions that explain or predict these events or situations by illustrating the relationships between variables.Theories must be applicable to a broad variety of situations. They are, by nature, abstract, and don’t have a specified content or topic area. Like empty coffee cups, theories have shapes and boundaries, but nothing inside. They become useful when filled with practical topics, goals, and problems. [Robert T. Croyle (2005)] Reference
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Selasa, 04 Januari 2011
Development of Nursing Theories
Introduction to Nursing Theories
Introduction to Nursing Theories | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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INTRODUCTION
COMPONENTS OF A THEORY 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.. Based on the knowledge structure levels the theoretical works in nursing can be studied under the following headings:
NURSING PHILOSOPHIES
CONCLUSION The conceptual and theoretical nursing models help to provide knowledge to improve practice, guide research and curriculum and identify the goals of nursing practice. The state of art and science of nursing theory is one of continuing growth. Using the internet the nurses of the world can share ideas and knowledge, carrying on the work begun by nursing theorists and continue the growth and development of new nursing knowledge. It is important the nursing knowledge is learnt, used, and applied in the theory based practice for the profession and the continued development of nursing and academic discipline REFERENCES
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Comfort Theory Katharine Kolcaba
Comfort Theory |
Katharine Kolcaba |
This page was last updated on November 13, 2010 |
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INTRODUCTION
BACKGROUND OF THE THEORIST
CONCEPTS AND DEFINITIONS ( Kolcaba, 2010) Kolcaba described comfort as existing in 3 forms: relief, ease, and transcendence. Also, Kolcaba described 4 contexts in which patient comfort can occur: physical, psychospiritual, environmental, and sociocultural.
DEVELOPMENT OF THE THEORY
DESCRIPTION OF THE THEORY Nursing
Health
Person/Patient
Environment
REFERENCES
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Health As Expanding Consciousness Margaret Newman
Health As Expanding Consciousness |
Margaret Newman |
This page was last updated on November 13, 2010 |
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“Health is the expansion of consciousness.” - Newman, 1983 |
INTRODUCTION
BACHGROUND OF THE THEORIST
THEORY DEVELOPMENT She was influenced by following theorists:
ASSUMPTIONS
DESCRIPTION OF THE THEORY
NURSING PARADIGMS Health
Nursing
Human
Environment
STRENGTHS AND WEAKNESSES Strengths
CRITIQUE Clarity
Simplicity
Generality
Empirical Precision
Derivable Consequences
CONCLUSION Newman's theory can be conceptualized as
PUBLICATIONS & REFERENCES
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Human-To-Human Relationship Model Joyce Travelbee(1926-1973)
Human-To-Human Relationship Model |
Joyce Travelbee(1926-1973) |
This page was last updated on December 19, 2010 |
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Introduction
Abou the Theorist
Development of the Theory
Basic Concepts
Nursing Metaparadigms
Description of the theory
Conclusion
Publications& References
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