nursing
,PNEUMONIA
Comprehensive Nursing Management & Clinical Care Guide
TABLE OF CONTENTS
1. Definition & Overview
2. Epidemiology & Risk Factors
3. Classification & Types
4. Etiology & Pathophysiology
5. Signs & Symptoms
6. Diagnostic Criteria & Assessment
7. Nursing Assessment
8. Nursing Diagnoses (NANDA)
9. Nursing Interventions & Care Plans
10. Pharmacological Management
11. Oxygen Therapy & Respiratory Support
12. Complications
13. Prevention & Vaccination
14. Patient Education & Discharge Planning
15. Special Populations
1. DEFINITION & OVERVIEW
Pneumonia is an acute infection of the lung parenchyma caused by bacteria,
viruses, fungi, or other microorganisms, resulting in inflammation of the alveoli
and accumulation of inflammatory exudate in the air spaces.
Key Fact: Pneumonia is the leading cause of infectious death
worldwide, accounting for approximately 2.5 million deaths annually
(WHO, 2021). It is the most common cause of sepsis and the leading
cause of death in children under 5 years globally.
nursing
,Core Problem
• Infection triggers inflammatory response in alveoli
• Alveolar filling with exudate, pus, or fluid → impaired gas exchange
• Consolidation of lung tissue → ventilation-perfusion (V/Q) mismatch
• Hypoxemia and respiratory distress
2. EPIDEMIOLOGY & RISK FACTORS
Global Burden
• Incidence: ~450 million cases per year globally
• Mortality:
– Community-acquired pneumonia (CAP): 5-10% (outpatients), up to
25% (hospitalized)
– Hospital-acquired pneumonia (HAP): 15-20% mortality
– Ventilator-associated pneumonia (VAP): 20-50% mortality
• Economic impact: Billions in healthcare costs annually
Risk Factors
Host Factors (Increased Susceptibility)
Factor Mechanism
Age >65 or <2 years Immature or declining immune function
Chronic diseases COPD, asthma, heart failure, diabetes, CKD,
liver disease
Immunosuppression HIV/AIDS, chemotherapy, steroids, transplant
recipients
Malnutrition Impaired immune response
Smoking Damaged cilia, impaired mucociliary
clearance
Alcohol abuse Aspiration risk, impaired immune function
Neurological disorders Dysphagia, aspiration risk (stroke, dementia,
nursing
, Factor Mechanism
Parkinson’s)
Recent viral infection Damaged respiratory epithelium
Sedentary lifestyle / Impaired ventilation, secretion pooling
immobility
Environmental & Exposure Factors
Factor Risk
Hospitalization Exposure to resistant organisms
Mechanical ventilation Direct inoculation of pathogens
Aspiration Oral/gastric contents entering lungs
Crowded living conditions Increased transmission
Air pollution Damaged respiratory defenses
Seasonal (winter) Viral respiratory infections predominate
3. CLASSIFICATION & TYPES
By Setting of Acquisition
Community-Acquired Pneumonia (CAP)
• Definition: Pneumonia acquired outside healthcare facilities or within 48
hours of hospital admission
• Common pathogens: Streptococcus pneumoniae (most common),
Haemophilus influenzae, Mycoplasma pneumoniae, Chlamydophila
pneumoniae, Legionella pneumophila, respiratory viruses (influenza, RSV,
COVID-19)
• Mortality: Low-risk outpatients <1%; severe hospitalized 15-30%
Hospital-Acquired Pneumonia (HAP)
• Definition: Pneumonia occurring ≥48 hours after hospital admission
• Common pathogens: Staphylococcus aureus (MRSA), Pseudomonas
aeruginosa, Klebsiella pneumoniae, Acinetobacter, Enterobacteriaceae
nursing
,PNEUMONIA
Comprehensive Nursing Management & Clinical Care Guide
TABLE OF CONTENTS
1. Definition & Overview
2. Epidemiology & Risk Factors
3. Classification & Types
4. Etiology & Pathophysiology
5. Signs & Symptoms
6. Diagnostic Criteria & Assessment
7. Nursing Assessment
8. Nursing Diagnoses (NANDA)
9. Nursing Interventions & Care Plans
10. Pharmacological Management
11. Oxygen Therapy & Respiratory Support
12. Complications
13. Prevention & Vaccination
14. Patient Education & Discharge Planning
15. Special Populations
1. DEFINITION & OVERVIEW
Pneumonia is an acute infection of the lung parenchyma caused by bacteria,
viruses, fungi, or other microorganisms, resulting in inflammation of the alveoli
and accumulation of inflammatory exudate in the air spaces.
Key Fact: Pneumonia is the leading cause of infectious death
worldwide, accounting for approximately 2.5 million deaths annually
(WHO, 2021). It is the most common cause of sepsis and the leading
cause of death in children under 5 years globally.
nursing
,Core Problem
• Infection triggers inflammatory response in alveoli
• Alveolar filling with exudate, pus, or fluid → impaired gas exchange
• Consolidation of lung tissue → ventilation-perfusion (V/Q) mismatch
• Hypoxemia and respiratory distress
2. EPIDEMIOLOGY & RISK FACTORS
Global Burden
• Incidence: ~450 million cases per year globally
• Mortality:
– Community-acquired pneumonia (CAP): 5-10% (outpatients), up to
25% (hospitalized)
– Hospital-acquired pneumonia (HAP): 15-20% mortality
– Ventilator-associated pneumonia (VAP): 20-50% mortality
• Economic impact: Billions in healthcare costs annually
Risk Factors
Host Factors (Increased Susceptibility)
Factor Mechanism
Age >65 or <2 years Immature or declining immune function
Chronic diseases COPD, asthma, heart failure, diabetes, CKD,
liver disease
Immunosuppression HIV/AIDS, chemotherapy, steroids, transplant
recipients
Malnutrition Impaired immune response
Smoking Damaged cilia, impaired mucociliary
clearance
Alcohol abuse Aspiration risk, impaired immune function
Neurological disorders Dysphagia, aspiration risk (stroke, dementia,
nursing
, Factor Mechanism
Parkinson’s)
Recent viral infection Damaged respiratory epithelium
Sedentary lifestyle / Impaired ventilation, secretion pooling
immobility
Environmental & Exposure Factors
Factor Risk
Hospitalization Exposure to resistant organisms
Mechanical ventilation Direct inoculation of pathogens
Aspiration Oral/gastric contents entering lungs
Crowded living conditions Increased transmission
Air pollution Damaged respiratory defenses
Seasonal (winter) Viral respiratory infections predominate
3. CLASSIFICATION & TYPES
By Setting of Acquisition
Community-Acquired Pneumonia (CAP)
• Definition: Pneumonia acquired outside healthcare facilities or within 48
hours of hospital admission
• Common pathogens: Streptococcus pneumoniae (most common),
Haemophilus influenzae, Mycoplasma pneumoniae, Chlamydophila
pneumoniae, Legionella pneumophila, respiratory viruses (influenza, RSV,
COVID-19)
• Mortality: Low-risk outpatients <1%; severe hospitalized 15-30%
Hospital-Acquired Pneumonia (HAP)
• Definition: Pneumonia occurring ≥48 hours after hospital admission
• Common pathogens: Staphylococcus aureus (MRSA), Pseudomonas
aeruginosa, Klebsiella pneumoniae, Acinetobacter, Enterobacteriaceae
nursing
