Health & Illness Concept

Ethical Foundations and Core Concepts of Health and Illness

• American Nurses Association (ANA) Code of Ethics Provisions:

  • Provision 1: Establishes the foundational standard that the nurse practices with compassion and respect for the inherent dignity, worth, and unique attributes of every individual.

  • Sub-provision 1.3 (The Nature of Health):

    • Health care is a universal right; the need for nursing care transcends all individual differences.

    • The intrinsic worth of a person is never diminished or affected by life choices, circumstances, illness, functional status, socioeconomic status, physical ability, or proximity to death.

    • Nursing care is tailored to unique patient preferences, values, needs, and choices.

    • Respect is extended universally to all recipients of care across the continuum: health promotion, illness and injury prevention, health restoration, alleviation of pain and suffering, and provision of supportive or end-of-life care.

    • Ethical obligation dictates that patients who have made detrimental health or lifestyle choices remain fully deserving of nonjudgmental care, respect, and dignity.

• Core Conceptual Definitions:

  • Health: A state of complete physical, mental, and social well-being, and not merely the absence of disease or infirmity.

  • Wellness: A positive state of health of a unique individual, family, or community.

  • Disease: A functional or structural disturbance that results when a person's adaptive mechanisms fail to counteract stimuli and stresses.

  • Illness: The physical manifestations and subjective experience of the individual.

  • Health Promotion: The process of enabling people to increase control over, and to improve, their overall health.

  • Hardiness / Resilience: A positive force or internal drive to live, characterized by willingness to seek out health information, adapt positively to stressors, and maintain optimal functioning despite adverse health conditions.

Clinical Case Study: Health Promotion Application

• Baseline Patient Profile (Jack):

  • Demographics: $59\text{-year-old}$ male.

  • Medical History: Type 2 diabetes mellitus, hypertension, and obesity.

  • Clinical Presentation Data: Blood glucose running consistently elevated at $180 - 200\text{ mg/dL}$; blood pressure on the high side of normal at $150/90\text{ mmHg}$; Body Mass Index (BMI) of $31\text{ kg/m}^2$.

  • Occupational and Lifestyle Factors: Works $50 - 60\text{ hours per week}$ in computer technology (sedentary occupation); consumes $2 - 3\text{ beers}$ each night; occasionally smokes cigars.

  • Family Dynamics: Wife works equal hours, travels frequently, and works night shifts. Irregular joint schedules lead to a sedentary lifestyle and frequent restaurant dining (high sodium, high fat, elevated carbohydrate intake).

• Identification of Health Hurdles & Risk Factors:

  • Modifiable Lifestyle Factors: Sedentary job, long working hours, lack of structured routine, frequent restaurant meals, daily intake of alcohol (carbohydrates in beer affecting blood glucose management), and cigar smoking.

  • Non-Modifiable / Pre-disposing Factors: Age ($59\text{ years}$), genetic predisposition to metabolic and cardiovascular dysfunction.

  • Psychosocial Factors: Stress from work, asynchronous schedules with spouse hindering shared physical activities or home meal preparation.

• Targeted Nursing Interventions:

  • Assessment & Engagement: Solicit patient preferences and personal goals rather than imposing rigid instructions; assess historical attempts at lifestyle modification.

  • Targeted Education: Provide rationale behind health choices (e.g., explaining how alcohol consumption impacts glycemic control and exacerbates diabetes complications).

  • Workplace Adaptations: Recommend standing desks or short movement breaks during long computer work sessions.

  • Community & Environmental Resources: Offer referrals for smoking cessation programs, structured walking groups, and nutritional counseling tailored for dining out.

Levels of Prevention and Clinical Screening Guidelines

• Distinction Between Levels of Prevention and Levels of Care:

  • Levels of care refer to delivery settings (primary, secondary, tertiary health services), whereas levels of prevention describe specific clinical goals aimed at disease avoidance, early detection, or chronic disease management.

• Primary Prevention:

  • Definition & Objective: Measures designed to optimize health and prevent the onset of disease, illness, or injury.

  • Lifespan Applications:

    • Prenatal: General prenatal care, folic acid supplementation (preventing neural tube defects), maternal immunizations, complete abstinence from tobacco, alcohol (ETOH), and illicit substances, and prenatal nutrition counseling.

    • Infants, Children & Adolescents: Injury prevention (helmet usage for bicycling/skateboarding, safe infant sleep education laying back-to-sleep without crib bumpers to prevent SIDS, rear-facing car seats, lead exposure avoidance), environmental exposure protection (sunscreen, protective clothing), complete pediatric vaccination schedules, routine physical activity encouragement, sex education, safe driving practices (seatbelt compliance), body image/nutrition guidance, and substance avoidance.

    • Adults & Older Adults: Routine vaccinations (influenza, pneumococcal, Tdap, shingles), physical activity programs, nutritional counseling, stress management strategies (meditation, counseling), workplace safety gear, environmental hazard protection, and injury prevention.

• Secondary Prevention (Screening):

  • Definition & Objective: Early detection and diagnosis of disease in latent or preclinical stages to allow prompt treatment, limit disability, and prevent long-term complications.

  • Lifespan Applications:

    • Prenatal: Obstetrical ultrasound screening, Rh factor and antibody screening, STI screenings, and Group B Streptococcus (GBS) screening.

    • Infants, Children & Adolescents: Developmental milestone tracking (pediatric pincher grip, block stacking), newborn and age $4 - 6\text{ years}$ hearing screenings, vision screenings, BMI screening for pediatric obesity, adolescent depression screening, and substance abuse screening.

    • Adults & Older Adults: Vision and hearing assessments, blood pressure (BP) screening, blood lipid profiling, cancer screenings, depression and substance abuse screening, cognitive function screening (dementia assessment), and functional assessment screening (Activities of Daily Living [ADLs]).

• Tertiary Prevention:

  • Definition & Objective: Management and restorative care for established, diagnosed chronic conditions to minimize disease consequences, delay progression, prevent complications, and maintain functional independence.

  • Lifespan Applications:

    • Prenatal: Active gestational diabetes management (insulin therapy, blood glucose monitoring), hypertension management, and substance use disorder treatment.

    • Infants, Children, Adolescents, Adults & Older Adults: Chronic disease management (COPD, heart failure, arthritis, diabetes management), structured obesity treatment plans, specialized nutritional therapy, cardiac rehabilitation following myocardial infarction/open heart surgery, and physical therapy.

• Evidence-Based Screening Frequencies (ATI & Clinical Standards):

  • Routine Physical Examination: Recommended based on individual health status and provider discretion.

  • Dental Assessment: Every $6 - 12\text{ months}$.

  • Blood Pressure Screening: At least every $2\text{ years}$; annually if previously elevated.

  • Body Mass Index (BMI): Assessed at every routine health care visit.

  • Blood Cholesterol: Initiated at age $20\text{ years}$; minimum frequency of every $5\text{ years}$ (more frequent if genetically predisposed).

  • Blood Glucose: Initiated at age $45\text{ years}$; minimum frequency of every $3\text{ years}$.

  • Colorectal Screening: High-sensitivity fecal occult blood testing (FOBT) yearly between ages $50 - 75\text{ years}$, OR flexible sigmoidoscopy every $5\text{ years}$, OR colonoscopy every $10\text{ years}$.

  • Cervical Cancer Screening: Ages $21 - 65\text{ years}$; Pap smear every $3 - 5\text{ years}$.

  • Breast Cancer Screening: Clinical breast examination (CBE) every $3\text{ years}$ for ages $20 - 39\text{ years}$, annually for age $40+\text{ years}$; screening mammograms annually for ages $40 - 54\text{ years}$, and every $1 - 2\text{ years}$ for ages $55+\text{ years}$.

  • Clinical Testicular Examination: Conducted at each routine health care visit starting at puberty.

  • Prostate Screening: Prostate-Specific Antigen (PSA) test and Digital Rectal Examination (DRE) starting at age $55 - 69\text{ years}$.

• Categorization Exercises (Primary, Secondary, Tertiary):

  • Primary Prevention: Maintaining BMI $< 25\text{ kg/m}^2$, smoking cessation, limiting alcohol intake, well-balanced diet, Zumba classes $3\text{ times/week}$, routine vaccination, sleeping $6 - 8\text{ hours/night}$.

  • Secondary Prevention: BP screening, blood cholesterol screening, Pap smear, prostate exam, bone density screening, hearing/vision screening, breast self-examination.

  • Tertiary Prevention: Diabetes management, post-cholecystectomy care, casting a fractured tibia, cardiac rehabilitation, postoperative turn/cough/deep breathe (TCDB) exercises every $2\text{ hours}$, clinical management of Neonatal Abstinence Syndrome (NAS).

Health Promotion Theoretical Models

• Key Elements Framework:

  • Optimization of Health: Proactive measures to sustain wellness and detect disease early.

  • Evidence: Guidelines grounded in rigorous research; recommendations continuously updated. The United States Preventive Services Task Force (USPSTF) establishes clinical priorities using 5 distinct levels of evidence strength.

  • Patient & Community-Centered Care: Interventions must reflect the explicit values, desires, and cultures of the target population.

  • Enculturation: Requires high cultural competence and sensitivity, incorporating specific beliefs, attitudes, values, and interpersonal dynamics into all phases of care.

• Individual-Focused Models:

  • Pender's Health Promotion Model (HPM):

    • Explains that health-promoting behaviors are influenced by individual characteristics and experiences (prior related behaviors, personal biological/psychological/sociocultural factors) and behavior-specific cognitions and affect (perceived benefits, perceived barriers, perceived self-efficacy, activity-related affect, interpersonal influences, situational influences).

    • These factors directly dictate the commitment to a plan of action and determine the final behavioral outcome.

*   **Transtheoretical Model of Behavioral Change (Prochaska & DiClemente)**:
    *   **Precontemplation (Not Ready)**: Individual is unaware or uninformed about the problem; no intention to alter behavior within the next $6\text{ months}$.
    *   **Contemplation (Getting Ready)**: Individual acknowledges a problem exists and considers changing within the next $6\text{ months}$, but remains uncommitted.
    *   **Preparation (Ready)**: Intention to take action within the next $30\text{ days}$; small initial modifications are actively initiated (e.g., buying walking shoes, scheduling a start date).
    *   **Action**: Active modification of behavior has been implemented for less than $6\text{ months}$.
    *   **Maintenance**: Behavioral change sustained for $6\text{ months}$ to $5\text{ years}$; actively working to prevent relapse.
    *   **Termination**: Complete self-efficacy ($100\text{\%}$); zero temptation to relapse across the lifetime (rarely fully achieved).
    *   *Application to Smoking Cessation*: Precontemplation (refusal to quit due to perceived lack of harm) $\rightarrow$ Contemplation (acknowledging smoking causes cough or observing peer illness) $\rightarrow$ Preparation (purchasing nicotine gum, setting a quit date) $\rightarrow$ Action (using patches, avoiding triggers, stopping smoking) $\rightarrow$ Maintenance (sustaining abstinence past $6\text{ months}$) $\rightarrow$ Termination (lifetime abstinence without craving).

*   **Health Belief Model (Stretcher & Rosenstock)**:
    *   Developed to evaluate why individuals engage or fail to engage in preventative health measures.
    *   **Perceived Susceptibility**: Subjective assessment of personal risk for acquiring a condition.
    *   **Perceived Severity**: Evaluation of the medical and social consequences of the condition.
    *   **Perceived Benefits**: Belief in the efficacy of the proposed health behavior to reduce risk or severity.
    *   **Perceived Barriers**: Assessment of financial, physical, or psychological obstacles to action.
    *   **Cues to Action**: Internal or external triggers necessary to prompt behavior (e.g., symptoms, media warnings, peer illness).
    *   **Self-Efficacy**: Conviction that one can successfully execute the behavior required.

*   **Wheel of Wellness**:
    *   Illustrates wellness as an interconnected wheel composed of 8 core dimensions: Physical, Spiritual, Emotional, Occupational, Intellectual, Environmental, Financial, and Social.
    *   An imbalance or disruption in any single dimension compromises the structural integrity of the entire wheel, producing diminished holistic health.

• Community & Population-Focused Models:

  • Diffusion of Innovations Model (Rogers):

    • Categorizes how populations adopt novel health practices or innovations over time:

      • Innovators: $2.5\%$

      • Early Adopters: $13.5\%$

      • Early Majority: $34\%$

      • Late Majority: $34\%$

      • Laggards: $15\%$

    • Information dissemination and adoption rates depend heavily on communication channels (social media, peer networks, public policies).

*   **Social Ecological Model**:
    *   Examines complex interactions across 5 nested spheres of influence:
        *   **Individual**: Knowledge, attitudes, skills, personal behaviors.
        *   **Interpersonal**: Family, friends, peers, social networks.
        *   **Institutional**: Workplace policies, school systems, healthcare organizations.
        *   **Community**: City infrastructure, neighborhood safety, environmental resources, local norms.
        *   **Policy**: Federal, state, and municipal laws and health mandates.

Population Health, Determinants, and Community Nursing

• Healthy People 2030 Overarching Goals:

  • Attain healthy, thriving lives and well-being, free of preventable disease, disability, injury, and premature death.

  • Eliminate health disparities, achieve health equity, and attain health literacy to improve overall population well-being.

  • Create social, physical, and economic environments that promote attaining full potential for health and well-being for all.

  • Promote healthy development, healthy behaviors, and well-being across all life stages.

  • Engage leadership, key constituents, and the public across multiple sectors to take action and design policies.

• Social Determinants of Health (SDOH):

  • Definition: Environmental conditions in which people are born, live, learn, work, play, worship, and age that affect a broad array of health outcomes.

  • 5 Core Domains:

    1. Economic Stability: Income, poverty status, employment, food security, housing stability.

    2. Education Access and Quality: High school graduation, literacy levels, early childhood education.

    3. Healthcare Access and Quality: Health insurance coverage, health literacy, access to primary/specialty care.

    4. Neighborhood and Built Environment: Quality of housing, exposure to crime/violence, environmental hazards, access to healthy food options, safe sidewalks/parks.

    5. Social and Community Context: Social cohesion, discrimination, civic participation, workplace conditions.

• Vulnerable Populations & Health Disparities:

  • Vulnerable Populations: Groups at heightened risk for poor health outcomes, including individuals of low socioeconomic status, ethnic/racial minorities, rural inhabitants, unhoused individuals, older adults, and migrant agricultural workers.

  • Health Disparities: Unfair, preventable gaps or inequities in health outcomes experienced by vulnerable groups.

  • Socioeconomic Status (SES): Low SES represents the single most consistent predictor of reduced life expectancy, elevated morbidity, increased mortality, and poor health status indicators.

  • Rural Health Disparities: Driven by geographical isolation, shortage of local medical/dental providers, lack of public transportation, seasonal harsh weather, and diminished infrastructure.

• Behavioral Risk Factor Surveillance System (BRFSS):

  • Established in $1984$ with $15\text{ states}$; currently collects health-related telephone survey data across all $50\text{ states}$, the District of Columbia, and $3\text{ U.S. territories}$.

  • Conducts over $400{,}000$ adult interviews annually, standing as the largest continuously conducted health survey system in the world to track state-level risk behaviors, chronic conditions, and preventative care usage.

• Specialized Nursing Roles:

  • Community Health Nursing: Focuses on preserving, protecting, and promoting public health by evaluating needs in specific populations (e.g., lower-income communities) and connecting patients to free or low-cost services.

  • Public Health Nursing: Population-focused nursing practice centered on community-wide assessment, disease prevention, and public health policy implementation.

  • Home Health Nursing: Provision of direct clinical, skilled nursing, and medical care to homebound patients within their residences.

  • Case Management Nursing: Coordination and oversight of long-term care plans for patients with complex, severe, or chronic conditions, navigating health systems and insurance resources.

Illness Dynamics, Health Assessment, and Nursing Interventions

• Levels of Nursing Assessment:

  • Individual Assessment: Evaluates personal age, physiological health status, risk factor presence, subjective health values, personal relationships, and health preferences.

  • Family Assessment: Evaluates family health risks, dynamics, strengths, hereditary/genetic traits, and inter-relational coping.

  • Community Assessment: Evaluates local community structures, population demographics, morbidity and mortality statistics, physical park/recreational conditions, local food security, and resource availability.

• Classification of Risk Factors:

  • Modifiable: Factors capable of being altered through behavior or medical intervention (dietary habits, physical activity levels, alcohol intake, tobacco use, BMI, stressful environments).

  • Non-Modifiable: Fixed attributes impossible to alter (age, biological sex assigned at birth, genetic predisposition/family history).

• Acute vs. Chronic Illness Categorization:

  • Acute Illness: Rapid onset, short duration, usually self-limiting or resolved with prompt treatment; patient returns to baseline health.

    • Examples: COVID-19 infection, acute gastroenteritis, pneumonia, second-degree thermal burns, fractured hip from a fall.

  • Chronic Illness: Prolonged disease process lasting $6\text{ months}$ or longer (frequently lifetime); involves permanent anatomical or physiological changes, requiring long-term lifestyle management. Characterized by alternating periods of remission (period of wellness despite disease presence) and exacerbation (acute flare-up of clinical manifestations).

    • Examples: Type 2 diabetes mellitus, essential hypertension, chronic obstructive pulmonary disease (COPD), coronary artery disease (CAD) leading to myocardial infarction, alcohol use disorder, basal cell carcinoma.

• Epidemiological Facts on Chronic Conditions (Box 7-2):

  • More than $117\text{ million}$ Americans live with chronic conditions.

  • Chronic conditions account for approximately $70\%$ of all deaths in the United States.

  • Approximately $80\%$ of older adults have at least one chronic condition; $50\%$ have two or more.

  • Approximately $14\%$ of adults older than age $65\text{ years}$ have a diagnosable depressive illness.

  • Top three risks for functional decline: Cognitive impairment, depression, and disease burden.

  • Largest declines in functional physical abilities are linked to knee/hip arthritis, sciatica, and chronic pulmonary diseases.

  • Arthritis affects $1\text{ in }4$ U.S. adults ($>40\%$ experience activity limitations).

  • Obesity affects $>42\%$ of adults and $20\%$ of children/adolescents, raising chronic risk for type 2 diabetes, cancer, and heart disease.

  • Most Frequent Physical Conditions in Medicare Beneficiaries:

    • Hypertension: $66.3\%$

    • Hyperlipidemia: $63.5\%$

    • Arthritis: $34.6\%$

    • Diabetes Mellitus: $26.5\%$

    • Ischemic Heart Disease: $21.2\%$

    • Chronic Obstructive Pulmonary Disease (COPD): $13.0\%$

    • Atrial Fibrillation: $13.7\%$

    • Heart Failure: $12.1\%$

    • Depression: $19.5\%$

    • Osteoporosis: $10.8\%$

    • Alzheimer's Disease: $2.5\%$

• Stages of Illness Behavior:

  1. Experiencing Symptoms: Initial physical recognition of dysfunction (e.g., pain, fever, cough).

  2. Sick Role Behavior: Emotional and social release from standard duties; self-treatment or behavioral alterations.

  3. Seeking Professional Care: Seeking professional clinical evaluation and validation.

  4. Dependent on Others: Accepting the treatment plan and reliance on health care professionals and caregivers.

  5. Recovery and Rehabilitation: Gradual relinquishment of the dependent sick role and resumption of baseline functional duties.

• Health-Illness Continuum & Health Disruptors:

  • Health is a dynamic, constantly fluctuating state along a continuum ranging from high-level wellness in a favorable environment to severe illness or death in an unfavorable environment.

  • Health Disruptors: Physical disease, severe injury, mental illness, acute pain, loss/grief, competing operational demands, unexpected life alterations, social isolation, and exposure to the unknown.

• Nurse Self-Care & Professional Role Modeling:

  • Nurses must actively model healthy behavior (adequate sleep $6 - 8\text{ hours/night}$, physical movement, nutrition, stress management) to effectively counsel patients.

  • Nurse well-being and patient safety are inextricably linked; nurses must remain vigilant to signs of personal burnout, distress, or exhaustion.

  • Healthcare environments must ensure physical and psychological safety; nurses must be treated with respect and never tolerate verbal or physical abuse from patients, families, or colleagues.