1. Nursing Theories
Introduction:
Good day. Today I will discuss nursing theories. Nursing theories are systematic
explanations of nursing practice, guiding how nurses assess, plan, and provide care.
They give us a framework to understand patients holistically.
Body:
● Nursing theories are important because they define what nursing is, what nurses
do, and why they do it.
● They can be classified as:
○ Grand theories – broad, abstract (e.g., Florence Nightingale’s
Environmental Theory).
○ Middle-range theories – narrower in scope, more applicable in practice
(e.g., Peplau’s Interpersonal Relations).
○ Practice-level theories – specific to certain situations (e.g., pain
management models).
● Examples:
○ Nightingale’s Environmental Theory – focuses on the environment
(ventilation, sanitation, light) to improve recovery.
○ Orem’s Self-Care Deficit Theory – when patients cannot care for
themselves, nurses step in.
○ Peplau’s Interpersonal Relations Theory – emphasizes nurse-patient
relationship as a therapeutic tool.
Points to Remember:
● Nursing theories guide the nursing process and practice.
● They help standardize care and improve patient outcomes.
● Theories bridge knowledge and actual bedside care.
Situation:
A patient recovering from pneumonia is placed in a well-ventilated, quiet, and clean
room. This applies to Nightingale's theory. When the nurse assists a stroke patient with
bathing and feeding, that’s Orem’s theory in action.
Conclusion:
In summary, nursing theories give us the foundation for professional practice and
ensure that nursing care is evidence-based and holistic.
2. Nursing Process
Introduction:
The nursing process is the scientific method of nursing practice. It is systematic,
patient-centered, and goal-directed.
Body (ADPIE):
1. Assessment: Collect subjective (patient’s statements) and objective data (vital
signs, labs).
2. Diagnosis: Identify actual or potential problems.
3. Planning: Set SMART goals (Specific, Measurable, Achievable, Realistic,
Time-bound).
4. Implementation: Carry out nursing interventions.
5. Evaluation: Check if goals are met.
6. Documentation & Reporting: Record care accurately.
Points to Remember:
● It is cyclical and continuous.
● Provides individualized, holistic care.
● Enhances communication among the healthcare team.
Situation:
A patient reports chest pain.
● Assess: Vital signs show BP 150/100, HR 110.
● Diagnosis: Acute pain r/t decreased oxygen supply.
● Plan: Relieve pain in 30 minutes.
● Implementation: Administer O₂, prescribe meds, rest.
● Evaluation: Pain scale reduced from 8 to 3.
● Document: Record interventions and patient’s response.
Conclusion:
The nursing process is the heart of nursing practice. It ensures care is organized,
evidence-based, and patient-centered.
3. Health Promotion & Models
Introduction:
Health promotion focuses on helping people improve health and prevent illness.
Body:
● Levels of Prevention:
○ Primary prevention: Prevent disease before it occurs (e.g., vaccination,
health teaching).
○ Secondary prevention: Early detection and treatment (e.g., BP checks,
mammograms).
○ Tertiary prevention: Rehabilitation and preventing complications (e.g.,
stroke rehab).
Points to Remember:
● Primary = prevention, Secondary = screening, Tertiary = rehab.
● Nurses play roles in all three levels in both community and hospital.
Situation:
A nurse organizes free BP screening → secondary prevention.
A diabetic patient taught foot care → tertiary prevention.
Giving immunizations to children → primary prevention.
Conclusion:
Health promotion empowers communities and individuals to take control of their health.
4. Vital Signs
Introduction:
Vital signs reflect essential body functions and are the nurse’s first line in detecting
patient status.
Body:
● Temperature: Normal 36.5–37.5°C. Fever indicates infection.
● Pulse: Normal 60–100 bpm. Tachycardia >100.
● Respirations: Normal 12–20/min. Dyspnea = difficulty breathing.
● Blood Pressure: Normal <120/80. Hypertension >140/90.
● Oxygen Saturation: Normal 95–100%.
Points to Remember:
● Vital signs must always be interpreted in context.
● They help detect early deterioration.
Situation:
Post-surgery patient: T = 38.9°C, P = 110, R = 24, BP = 140/90 → may indicate
infection. The nurse must report immediately.
Conclusion:
Vital signs are critical indicators guiding decisions and interventions.
5. Health Assessment
Introduction:
Health assessment is the systematic collection of data about the patient.
Body:
● Subjective data: Symptoms (what patient says).
● Objective data: Signs (what nurse observes).
● Approach: Head-to-toe or system-by-system.
Points to Remember:
● Both subjective and objective data are needed for accurate diagnosis.
● Builds a complete health picture.
Situation:
The patient says, “I feel dizzy” (subjective). Nurse notes BP = 80/50 (objective).
Conclusion:
A thorough health assessment is the foundation of safe and effective nursing care.
6. Interview (Health History)
Introduction:
Health history provides baseline information for care.
Body:
● Components:
○ Biographical data (name, age, gender).
○ Past health (illnesses, surgeries).
○ Family history (genetic risks like DM, HTN).
○ Lifestyle habits (smoking, diet, exercise).
○ Review of systems.
● Nurses must establish rapport and maintain confidentiality.
Points to Remember:
● Use open-ended questions.
● Listen actively and avoid judgment.
Situation:
A nurse interviewing a hypertensive patient learns the father also had high BP. This
helps identify hereditary risk.
Conclusion:
A complete health history guides individualized, holistic care planning.
7. Asepsis & Safety
Introduction:
Infection control and patient safety are vital responsibilities of nurses.
Body:
● Asepsis: Absence of disease-causing organisms.
● Types:
○ Medical asepsis (clean technique): handwashing, PPE.
○ Surgical asepsis (sterile technique): sterile gloves, instruments.
● Chain of Infection: Agent → Reservoir → Exit → Transmission → Entry → Host.
● Prevention: Break the chain through hygiene, isolation, PPE.
Points to Remember:
● Hand hygiene is the single most effective measure.
● Standard precautions apply to all patients.
Situation:
A nurse caring for a TB patient uses a N95 mask and negative-pressure room →
transmission-based precaution.
Conclusion:
Aseptic technique and safety measures protect both patients and healthcare providers.
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