Theoretical Foundations of Nursing (NURS 308)

WHY LEARN ABOUT THEORIES?

  • Foundation to guide practice
  • Rationales for implementing care
  • Design and implement nursing care
  • Theories help describe, explain, predict nursing care measures
  • Nightingale: environment free of clutter, soiled linens, excess noise
  • Orem: self-care (Self-Care Deficit Nursing Theory – SCDNT)

WHAT IS THEORY?

  • Explains concepts, relationships, outcomes
  • Metatheory: relationships and components of a discipline
  • Nursing theory: addresses an aspect of nursing
  • Theory: term, description, label that describes an idea or response to an intervention or situation
  • Phenomenon: general meaning of concepts; theoretical, conceptual, operational
  • Definitions: statements accepted as truth, based on values and beliefs “taken for granted”
  • Assumptions: thought or idea, either abstract or concrete, put into words to describe a specific phenomenon
  • Concepts: building blocks of theory; ideas or phenomena that can be defined and studied

DOMAIN OF NURSING

  • Domain: perspective of a profession or discipline
  • Includes subject, central concepts, values and beliefs, phenomena of interest, and central problems
  • Domain of nursing includes nursing theory, history, education, research, and practice
  • Paradigm: pattern of beliefs
  • Conceptual framework: organizing structure to promote visualization of subject matter

NURSING METAPARADIGM

  • Four elements: Person, Health, Environment, Nursing
  • Person: state of being, dynamic, as defined by the individual receiving care
  • Health: conditions affecting the person at home, school, work, or community
  • Environment: surroundings influencing health; can include social and physical factors
  • Nursing: care of ill, disabled, dying; health promotion, disease prevention; acts performed by nurses

EVOLUTION OF NURSING THEORY

  • Nightingale as the first theorist
  • Curriculum era: 1900s–1940s — emphasis on scientific content, nursing arts, social sciences, pharmacology
  • Research era: 1950s–1970s
  • Theory era: 1980s–1990s
  • Theory utilization: 21st century; emphasis on evidence-based practice (EBP)

TYPES OF THEORY

  • Grand theory: abstract, broad in scope; complex; wide applicability
  • Middle-range theory: less abstract; narrower scope; more concrete and testable
  • Practice theory: situation-specific; highly focused on real-world nursing practice
  • Descriptive theories: explain phenomena
  • Prescriptive theories: explain and provide explicit guidance to influence practice and predict consequences
  • Scope progression: Grand → Middle-range → Practice (increasing specificity and testability)

THEORY-BASED NURSING PRACTICE

  • Theory is necessary to advance knowledge and prescribe specific interventions to improve patient outcomes
  • Nursing knowledge explains the practice of nursing as distinct from medicine and other health professions

SHARED THEORIES

  • Borrowed or interdisciplinary theories explain a phenomenon specific to the discipline that developed the theory
  • Examples of theorists whose ideas are used in nursing: Piaget, Erikson, Kohlberg, Knowles
  • Systems theory as a basis for the nursing process, organizing and guiding delivery of patient-centered care
  • Mapping in nursing process:
    • input: data collection
    • output: patient’s health status
    • feedback: response
    • content: nursing process

NURSING THEORIES (Selected Theories and Theorists)

  • Nightingale’s Environmental Theory
    • Focus: Hygiene, nutrition, sanitation; manage the environment to improve patient outcomes
  • Peplau’s Interpersonal Theory
    • Preorientation, orientation, working phase, resolution (the stages of the nurse–patient relationship)
    • Interpersonal relationships involve the nurse, patient, and family
  • Orem’s Self-Care Deficit Nursing Theory (SCDNT)
    • Emphasizes patient self-care capacities and the deficits that require nursing support
  • Leininger’s Culture Care Theory (Cultural Diversity)
    • Focus: Culture influences everything that involves a patient; culturally congruent care
  • Note: The slide caption includes a non-substantive line “Pitch deck title” which is not part of the theory content and is not retained as a concept

THEORY AND RESEARCH BUILD SCIENTIFIC KNOWLEDGE BASE

  • Theory
    • Shapes and defines practice
    • Advances knowledge
    • Provides a foundation for specific care
    • Relationships between components of theory initiate research questions
    • Supports safe, comprehensive, individualized, quality care
  • Research
    • Validates, supports, or modifies theory
    • Develops new theories
    • Theory-generating
    • Evaluates accuracy of described phenomena
    • Theory testing

ADDITIONAL NOTES AND CONNECTIONS

  • The metaparadigm components (Person, Health, Environment, Nursing) define the scope of nursing and guide what constitutes nursing knowledge and practice
  • Paradigms and conceptual frameworks help organize nursing knowledge and visualization of relationships among concepts
  • Evolution of nursing theory reflects shifting emphasis from education and arts to evidence-based practice and theory-driven inquiry
  • Shared theories demonstrate how interdisciplinary ideas enrich nursing practice and research, highlighting the importance of a pluralistic theoretical foundation
  • Ethical and practical implications include culturally sensitive care, patient autonomy (self-care focus), and the nurse–patient–family relationship as central to care delivery
  • Foundational principles connect to real-world care: maintaining hygienic environments, supporting patient self-care, addressing cultural needs, and fostering therapeutic nurse–patient relationships