Pneumonia is a lung infection that causes inflammation inside the lung tissue, especially in the alveoli, the tiny air sacs where oxygen enters the blood. In healthy lungs, alveoli fill with air during breathing. In pneumonia, these air sacs become inflamed and fill with fluid, mucus, or pus, making gas exchange difficult. This leads to cough, fever, chest pain, shortness of breath, low oxygen levels, fatigue, and abnormal breath sounds.
Pneumonia can be caused by bacteria, viruses, fungi, or aspiration of food, fluid, saliva, or vomit into the airway. It can affect one lung or both lungs. It can be mild enough to treat at home, or severe enough to require hospital care, oxygen therapy, IV medicines, or mechanical ventilation.
The condition is especially risky for infants, older adults, smokers, people with chronic lung disease, post-surgery patients, immobile patients, and people with weak immune systems. In older adults, pneumonia may not always start with cough or fever. Confusion, weakness, low appetite, or sudden decline may be the first warning sign.
What Is Pneumonia?
Pneumonia is an infection and inflammation of the lungs. It mainly affects the alveoli, which are responsible for oxygen and carbon dioxide exchange. When germs enter the lungs, the immune system reacts. White blood cells move into the infected area, inflammation increases, and the alveoli fill with fluid or pus.
This fluid-filled state reduces oxygen movement from the lungs into the bloodstream. The person may breathe faster, feel tired, develop fever, cough up sputum, or show signs of hypoxia.
The CDC describes pneumonia as a lung infection caused by different germs, with treatment and prevention depending on the cause and risk level. WHO also notes that pneumonia fills the alveoli with pus and fluid, making breathing painful and limiting oxygen intake.
How Pneumonia Affects Gas Exchange
Gas exchange happens inside the alveoli. Oxygen moves from the alveoli into the blood, while carbon dioxide moves from the blood into the alveoli to be exhaled.
In pneumonia:
- Alveoli become inflamed
- Fluid and pus collect inside air sacs
- Oxygen movement becomes poor
- Carbon dioxide removal may reduce in severe cases
- Breathing becomes faster and harder
- Oxygen saturation may fall
This is why pneumonia can cause hypoxia, rapid breathing, fast heart rate, confusion, and respiratory distress.
Causes of Pneumonia
Pneumonia can develop when harmful organisms enter the lower respiratory tract and overpower normal lung defenses.
Common causes include:
- Bacteria
- Viruses
- Fungi
- Aspiration
- Hospital-related resistant organisms
- Ventilator-related infections
Pneumonia can spread through respiratory droplets, direct contact, aspiration, or bloodstream infection. The cause matters because bacterial, viral, fungal, and aspiration pneumonia need different treatment approaches.
Bacterial Pneumonia
Bacterial pneumonia is one of the most common and important forms of pneumonia. It often causes high fever, chills, productive cough, chest pain, and elevated white blood cell count.
A common cause of community-acquired bacterial pneumonia is Streptococcus pneumoniae, also called pneumococcus. CDC identifies pneumococcal disease as infection caused by Streptococcus pneumoniae.
Bacterial pneumonia often needs antibiotics. The medicine choice depends on the patient’s age, severity, local resistance patterns, allergies, and whether the infection was acquired in the community or hospital.
Viral Pneumonia
Viral pneumonia is caused by viruses that infect the respiratory system. Common causes include influenza virus, respiratory syncytial virus, SARS-CoV-2, and other respiratory viruses.
Viral pneumonia may begin with flu-like symptoms such as fever, body aches, fatigue, dry cough, and sore throat. In some patients, viral pneumonia can progress to severe breathing difficulty.
Antibiotics do not treat viral infection itself. Some viral causes, such as influenza, may need antiviral medicines when started early or when the patient is high risk.
Fungal Pneumonia
Fungal pneumonia is less common than bacterial and viral pneumonia. It is more likely in people with weak immune systems, long-term steroid use, HIV, cancer treatment, organ transplant, or certain environmental exposures.
Fungal pneumonia usually does not spread from person to person in the same way as many bacterial or viral infections. People often get it by breathing fungal spores from the environment.
Treatment usually needs antifungal medicine and careful evaluation.
Aspiration Pneumonia
Aspiration pneumonia occurs when food, fluid, saliva, vomit, or gastric contents enter the airway and lungs. This can introduce bacteria and irritants into the lung tissue.
It is common in people with:
- Poor swallowing ability
- Stroke
- Seizures
- Alcohol intoxication
- Reduced consciousness
- Tube feeding complications
- Neurological disease
- Weak cough reflex
Aspiration pneumonia can occur in the community or hospital. Prevention focuses on safe feeding, upright positioning, oral care, and swallowing assessment.
Types of Pneumonia
Pneumonia is commonly classified by where and how the infection was acquired. This classification helps guide treatment.
| Type of Pneumonia | Where It Is Acquired | Key Point | Common Concern |
|---|---|---|---|
| Community-acquired pneumonia | Outside hospital | Most common type | Streptococcus pneumoniae is a common cause |
| Hospital-acquired pneumonia | 48 hours or more after hospital admission | Often more resistant | Needs broader antibiotic consideration |
| Ventilator-associated pneumonia | 48 hours or more after intubation | Occurs in ventilated patients | Serious ICU complication |
| Aspiration pneumonia | Community or hospital | Inhalation of food, fluid, saliva, or vomit | Common in swallowing difficulty |
Merck Manual describes community-acquired pneumonia as pneumonia acquired outside the hospital, with Streptococcus pneumoniae among the commonly identified pathogens. Hospital-acquired pneumonia develops in hospitalized patients and ventilator-associated pneumonia occurs after at least 48 hours of endotracheal intubation.
Community-Acquired Pneumonia
Community-acquired pneumonia, or CAP, develops outside a hospital or healthcare facility. It can affect healthy people, but risk increases in older adults, smokers, and people with chronic disease.
Common features include:
- Fever
- Chills
- Cough
- Sputum production
- Chest pain
- Shortness of breath
- Fatigue
CAP can be mild, moderate, or severe. Mild cases may be treated at home. Severe cases need hospital care.
Hospital-Acquired Pneumonia
Hospital-acquired pneumonia, or HAP, develops after hospital admission, usually after 48 hours or more. It is important because hospital bacteria may be more resistant to common antibiotics.
Patients at risk include:
- Bedridden patients
- Post-operative patients
- ICU patients
- Patients with feeding tubes
- Patients with weak immunity
- Patients receiving long hospital treatment
HAP requires careful antibiotic selection based on local hospital resistance patterns and patient risk factors.
Ventilator-Associated Pneumonia
Ventilator-associated pneumonia, or VAP, develops in patients who have been intubated and placed on mechanical ventilation, commonly after more than 48 hours.
VAP happens because the breathing tube bypasses normal airway defenses. Secretions can collect around the tube and bacteria can move into the lower lungs.
Prevention includes:
- Elevating the head of bed
- Good oral care
- Hand hygiene
- Suctioning when needed
- Daily assessment for extubation readiness
- Avoiding unnecessary ventilation duration
Aspiration Pneumonia
Aspiration pneumonia occurs when foreign material enters the lungs. This material may include food, liquid, oral secretions, or stomach contents.
It is common after stroke, seizures, anesthesia, vomiting, or reduced consciousness. It can also happen in older adults with swallowing difficulty.
Nursing care focuses on aspiration prevention, safe feeding, oral hygiene, and early recognition of cough, fever, breathlessness, and oxygen drop after aspiration.
Risk Factors for Pneumonia
Some people are more likely to develop pneumonia because their lungs, immune system, swallowing ability, or mobility are compromised.
Major risk factors include:
- Smoking
- Recent respiratory infection
- Surgery or post-operative state
- Immobility
- Chronic lung disease
- Asthma
- COPD
- Heart disease
- Diabetes
- Weak immune system
- Very young age
- Older age
- HIV
- Autoimmune disease
- Long-term steroid use
- Cancer treatment
- Poor oral hygiene
- Difficulty swallowing
Mayo Clinic notes that pneumonia can range from mild to life-threatening and is more serious in infants, young children, adults over 65, and people with health problems or weakened immune systems.
Why Smoking Increases Pneumonia Risk
Smoking damages the airway lining and weakens the tiny hair-like structures called cilia. These structures normally help clear mucus, dust, and germs from the lungs.
When cilia are damaged, mucus stays longer in the airway. Germs grow more easily. This increases the risk of bronchitis and pneumonia.
Why Surgery and Immobility Increase Risk
After surgery, patients often breathe shallowly because of pain, anesthesia, weakness, or bed rest. Shallow breathing prevents full lung expansion.
This can cause secretion buildup and alveolar collapse. Both increase pneumonia risk.
That is why post-operative care includes deep breathing, coughing, early mobilization, incentive spirometry, and head-of-bed elevation.
Symptoms of Pneumonia
Pneumonia symptoms vary by age, cause, immune status, and severity.
Common symptoms include:
- Fever
- Chills
- Sweating or diaphoresis
- Cough
- Productive sputum
- Shortness of breath
- Chest pain
- Fast breathing
- Fast heart rate
- Fatigue
- Muscle aches
- Loss of appetite
- Low oxygen level
- Confusion, especially in older adults
WHO lists cough, shortness of breath, fever, sweating, shaking chills, fatigue, chest pain, nausea, vomiting, diarrhea, and confusion in older adults as possible pneumonia symptoms.
Respiratory Symptoms
Respiratory symptoms happen because the lungs are inflamed and filled with secretions.
Common respiratory signs include:
- Productive cough
- Thick sputum
- Shortness of breath
- Coarse crackles
- Rhonchi
- Chest discomfort
- Increased respiratory rate
- Low oxygen saturation
Crackles often occur when air moves through fluid-filled alveoli. Rhonchi may occur when mucus collects in larger airways.
Flu-Like Symptoms
Pneumonia often begins like the flu, especially in viral infections.
Flu-like symptoms include:
- Fever
- Chills
- Muscle pain
- Weakness
- Sweating
- Headache
- Poor appetite
- General body pain
These symptoms happen because the immune system releases inflammatory chemicals to fight infection.
Signs in Older Adults
Older adults may not show classic symptoms. Fever may be absent. Cough may be mild. The first sign may be a sudden change in mental status.
Warning signs in older adults include:
- Confusion
- Drowsiness
- Weakness
- Poor appetite
- Falls
- Low oxygen level
- Fast breathing
- New urinary incontinence
- Sudden functional decline
This is clinically important. In elderly patients, neuro changes may be the only early presenting sign.
Pneumonia and Hypoxia
Hypoxia means low oxygen reaching body tissues. Pneumonia can cause hypoxia because inflamed alveoli cannot exchange oxygen properly.
Signs of hypoxia include:
- Restlessness
- Anxiety
- Rapid breathing
- Fast heart rate
- Blue lips or fingertips
- Confusion
- Low oxygen saturation
- Decreased level of consciousness in severe cases
Hypoxia needs quick attention. Oxygen therapy, respiratory assessment, chest imaging, and treatment of infection may be needed.
Diagnosis of Pneumonia
Pneumonia diagnosis is based on symptoms, physical examination, imaging, and lab tests.
Merck Manual states that pneumonia is acute lung inflammation caused by infection, and the initial diagnosis is usually based on chest X-ray and clinical findings.
Physical Examination
A healthcare provider checks breathing pattern, oxygen saturation, pulse, temperature, and lung sounds.
Common findings include:
- Fever
- Tachycardia
- Tachypnea
- Low oxygen saturation
- Crackles
- Rhonchi
- Reduced breath sounds
- Dullness over affected area
- Increased work of breathing
Chest X-Ray
A chest X-ray helps confirm pneumonia by showing pulmonary infiltrates or consolidation.
Common X-ray findings include:
- Patchy infiltrates
- Lobar consolidation
- Interstitial changes
- Pleural effusion in some cases
- Bilateral involvement in severe infection
Chest X-ray also helps rule out other causes of symptoms, such as heart failure, atelectasis, pneumothorax, or lung mass.
Blood Tests
Blood tests support diagnosis and severity assessment.
Common tests include:
- Complete blood count
- White blood cell count
- C-reactive protein
- Procalcitonin in selected cases
- Blood culture in severe cases
- Kidney and liver function tests
- Arterial blood gas in respiratory distress
An elevated white blood cell count often supports infection, especially bacterial infection. However, normal WBC does not rule out pneumonia.
Sputum Culture
A sputum culture helps identify the causative organism. It is useful in severe pneumonia, hospital-acquired pneumonia, treatment failure, or suspected resistant infection.
The sample must be collected properly. Poor-quality saliva samples may not identify the true lung pathogen.
Pulse Oximetry and ABG
Pulse oximetry measures oxygen saturation. It is quick and non-invasive.
Arterial blood gas, or ABG, may be needed when:
- Oxygen is low
- Carbon dioxide retention is suspected
- Patient is confused or drowsy
- Severe respiratory distress is present
- ICU care is being considered
Treatment of Pneumonia
Pneumonia treatment depends on cause, severity, patient age, oxygen level, and underlying health conditions.
Treatment goals include:
- Cure the infection
- Improve oxygenation
- Reduce fever and discomfort
- Clear secretions
- Prevent complications
- Support breathing
- Restore strength and hydration
Mayo Clinic notes that treatment focuses on curing infection and preventing complications, with treatment choice depending on pneumonia type, severity, age, and overall health.
Antibiotics for Bacterial Pneumonia
Antibiotics are used when bacterial pneumonia is suspected or confirmed. The exact antibiotic depends on severity, local resistance patterns, allergies, recent antibiotic use, and care setting.
The ATS/IDSA community-acquired pneumonia guideline recommends starting empiric antibiotics in adults with clinically suspected and radiographically confirmed CAP, regardless of initial procalcitonin level.
Important patient education:
- Take antibiotics exactly as prescribed
- Do not stop early when symptoms improve
- Report rash, severe diarrhea, or worsening symptoms
- Finish the course unless the doctor changes treatment
Stopping antibiotics early can allow infection to return or become harder to treat.
Antivirals for Viral Pneumonia
Antivirals may be used for some viral pneumonias, especially influenza or COVID-related pneumonia when indicated.
Supportive care is also important:
- Rest
- Fluids
- Fever control
- Oxygen if needed
- Monitoring for worsening breathlessness
Antibiotics are not useful for pure viral pneumonia unless bacterial co-infection is suspected.
Antipyretics for Fever
Antipyretic medicines help reduce fever and body aches. Common examples include paracetamol or acetaminophen, depending on local practice and patient suitability.
Fever control improves comfort and reduces fluid loss from sweating.
Nebulization and Bronchodilators
Nebulizers may help if the patient has wheezing, bronchospasm, or thick secretions. They do not directly cure pneumonia but can support airway clearance in selected patients.
Common supportive approaches include:
- Nebulization as prescribed
- Steam or humidification where appropriate
- Chest physiotherapy in selected cases
- Hydration if not restricted
- Coughing and deep breathing
Oxygen Therapy
Oxygen is given when oxygen saturation is low or the patient shows signs of respiratory distress.
Oxygen delivery options include:
- Nasal cannula
- Simple face mask
- Venturi mask
- Non-rebreather mask
- High-flow nasal oxygen
- Non-invasive ventilation
- Mechanical ventilation in severe cases
Oxygen therapy must be monitored, especially in COPD patients who retain carbon dioxide.
Nursing Care for Pneumonia
Nursing care is central in pneumonia management. Nurses monitor respiratory status, support airway clearance, prevent complications, and educate the patient.
Key Nursing Interventions
- Monitor vital signs
- Assess respiratory rate and breathing effort
- Check oxygen saturation
- Auscultate lung sounds
- Monitor sputum color, amount, and consistency
- Keep head of bed elevated around 30 degrees or more
- Give oxygen as prescribed
- Encourage coughing and deep breathing
- Use incentive spirometer when ordered
- Encourage position changes
- Assist with early ambulation
- Provide oral care
- Administer medicines on time
- Maintain hydration unless restricted
- Suction secretions when needed
Respiratory Monitoring
Respiratory monitoring helps detect deterioration early.
Watch for:
- Increased respiratory rate
- Falling oxygen saturation
- Increased work of breathing
- New confusion
- Cyanosis
- Drowsiness
- Worsening crackles
- Reduced breath sounds
- Thick or bloody sputum
Early recognition prevents respiratory failure.
Chest Percussion and Secretion Clearance
Chest percussion may help mobilize secretions in selected patients. It is often combined with positioning, coughing, deep breathing, hydration, and suctioning when needed.
This is helpful when secretions are thick and the patient cannot cough effectively.
Head-of-Bed Elevation
Keeping the head of bed elevated helps lung expansion and reduces aspiration risk. A 30-degree elevation is commonly used, and higher positioning may help patients with shortness of breath.
Upright posture makes breathing easier and improves comfort.
Patient Education for Pneumonia
Patient education improves recovery and reduces recurrence.
Use Incentive Spirometer
An incentive spirometer helps open alveoli and improve ventilation. It is especially useful after surgery or during bed rest.
Teach the patient to:
- Sit upright
- Seal lips around the mouthpiece
- Inhale slowly and deeply
- Hold breath briefly
- Exhale normally
- Repeat as prescribed
This helps prevent atelectasis and improves gas exchange.
Change Position Frequently
Frequent position changes support postural drainage and prevent secretion pooling.
Encourage:
- Turning every 2 hours if bedridden
- Sitting upright
- Walking as tolerated
- Deep breathing
- Coughing after position changes
Do Not Stop Antibiotics Early
Patients often feel better before the infection is fully controlled. Stopping antibiotics early can lead to relapse or incomplete treatment.
Tell patients to complete the prescribed course unless their healthcare provider changes the plan.
Prevention of Pneumonia
Prevention focuses on reducing exposure, improving immunity, protecting lungs, and lowering aspiration risk.
CDC notes that immunizations and appropriate treatment, including antibiotics and antivirals when needed, can prevent many pneumonia deaths. CDC also highlights pneumococcal vaccination as protection against pneumococcal infections.
Prevention Checklist
| Prevention Method | Why It Helps |
|---|---|
| Hand hygiene | Reduces spread of germs |
| Vaccination | Lowers risk of some bacterial and viral pneumonia |
| Avoid sick contacts | Reduces respiratory infection exposure |
| Smoking cessation | Improves lung defense |
| Good oral care | Reduces aspiration-related bacteria |
| Early mobilization | Prevents secretion pooling |
| Incentive spirometry | Opens alveoli after surgery |
| Safe swallowing practices | Reduces aspiration risk |
| Manage chronic disease | Lowers severe infection risk |
Vaccines That Help Reduce Pneumonia Risk
Vaccines cannot prevent every case of pneumonia, but they reduce risk and severity.
Helpful vaccines may include:
- Pneumococcal vaccine
- Influenza vaccine
- COVID vaccine where recommended
- Hib vaccine in children
- RSV vaccine for eligible groups
NHLBI states that vaccines can help prevent pneumonia caused by pneumococcus bacteria or flu virus, and vaccinated people who still get pneumonia tend to have milder illness and fewer serious complications.
Diet and Fluid Support in Pneumonia
Pneumonia increases energy needs. Fever, fast breathing, and infection can cause weakness and dehydration.
Helpful diet tips include:
- Small, frequent meals
- High-protein foods
- High-calorie foods if appetite is low
- Warm fluids if suitable
- Adequate water intake
- Soft foods if swallowing is difficult
Fluids help loosen secretions. But patients with heart failure, kidney disease, or fluid restriction must follow their prescribed fluid limit.
Is Pneumonia Contagious?
Some types of pneumonia are contagious, while others are not.
| Type | Contagious? | Notes |
|---|---|---|
| Bacterial pneumonia | Often yes | Germs can spread through droplets |
| Viral pneumonia | Yes | Commonly spreads through cough, sneeze, or contact |
| Fungal pneumonia | Usually no person-to-person spread | Often acquired from environment |
| Aspiration pneumonia | No | Caused by inhaled food, fluid, saliva, or vomit |
| Hospital-acquired pneumonia | Depends on organism | Infection control is important |
A person with viral or bacterial pneumonia can spread germs through droplets, coughing, sneezing, or contaminated hands. Good hand hygiene, masks when needed, and avoiding close contact with sick people reduce spread.
Complications of Pneumonia
Pneumonia can cause complications, especially in older adults, infants, hospitalized patients, and immunocompromised patients.
Possible complications include:
- Respiratory failure
- Sepsis
- Pleural effusion
- Empyema
- Lung abscess
- Acute respiratory distress syndrome
- Worsening heart disease
- Dehydration
- Delirium in older adults
Severe pneumonia needs urgent care because infection can spread from the lungs into the bloodstream and affect other organs.
When to Seek Urgent Medical Care
Seek urgent medical help if pneumonia symptoms are severe or worsening.
Emergency warning signs include:
- Severe shortness of breath
- Blue lips or fingers
- Chest pain
- Confusion
- Drowsiness
- Oxygen saturation below the safe range
- High fever not improving
- Coughing blood
- Very fast breathing
- Low blood pressure
- Dehydration
- Symptoms in infants, elderly, or immunocompromised patients
Do not delay care if breathing becomes difficult.
Pneumonia vs Bronchitis
Pneumonia and bronchitis can both cause cough, fever, and mucus, but they affect different parts of the respiratory system.
| Feature | Pneumonia | Bronchitis |
|---|---|---|
| Main area affected | Alveoli and lung tissue | Bronchial tubes |
| Main problem | Infection fills air sacs with fluid or pus | Airway inflammation |
| Fever | Common, sometimes high | Usually mild or absent |
| Breath sounds | Crackles, rhonchi, reduced sounds | Wheeze or rhonchi |
| Chest X-ray | Infiltrates or consolidation | Often normal |
| Severity | Can be life-threatening | Usually less severe |
| Treatment | Depends on cause and severity | Often supportive unless bacterial cause suspected |
Pneumonia vs Pulmonary Edema
Both pneumonia and pulmonary edema can cause shortness of breath and crackles, but the cause is different.
| Feature | Pneumonia | Pulmonary Edema |
|---|---|---|
| Cause | Infection | Fluid overload or capillary leak |
| Alveoli | Filled with pus, fluid, inflammatory cells | Filled with fluid |
| Fever | Common | Not typical unless infection also present |
| Sputum | Productive, may be yellow/green/rusty | Pink frothy in severe cases |
| WBC count | Often elevated | May be normal unless infection |
| Treatment | Antibiotics, antivirals, supportive care | Oxygen, diuretics, nitrates, cardiac support |
| Main risk | Sepsis, respiratory failure | Respiratory failure, heart failure crisis |
FAQs
1. What is pneumonia in simple words?
Pneumonia is an infection in the lungs. It causes the tiny air sacs called alveoli to become inflamed and filled with fluid or pus. This makes breathing harder and reduces oxygen exchange. Common symptoms include cough, fever, chills, chest pain, and shortness of breath.
2. What is the most common cause of pneumonia?
Pneumonia can be caused by bacteria, viruses, fungi, or aspiration. A common bacterial cause of community-acquired pneumonia is Streptococcus pneumoniae. Viral pneumonia can occur from influenza, RSV, SARS-CoV-2, and other respiratory viruses. The exact cause depends on age, health condition, and exposure.
3. What are the main types of pneumonia?
The main types are community-acquired pneumonia, hospital-acquired pneumonia, ventilator-associated pneumonia, and aspiration pneumonia. Community-acquired pneumonia starts outside the hospital. Hospital-acquired pneumonia starts after hospital admission. Ventilator-associated pneumonia develops after mechanical ventilation, and aspiration pneumonia occurs when food, fluid, or secretions enter the lungs.
4. Is pneumonia contagious?
Bacterial and viral pneumonia can be contagious because germs can spread through coughing, sneezing, droplets, or contaminated hands. Fungal pneumonia usually does not spread from person to person. Aspiration pneumonia is not contagious because it happens when material enters the airway. Good hygiene and vaccination reduce risk.
5. What are early symptoms of pneumonia?
Early symptoms may include fever, chills, cough, tiredness, muscle aches, poor appetite, and mild shortness of breath. Some people develop chest pain when breathing deeply. Older adults may first show confusion, weakness, or sudden decline instead of fever. Any worsening breathing problem needs medical attention.
6. How is pneumonia diagnosed?
Pneumonia is diagnosed through symptoms, physical examination, and chest X-ray. Doctors may also order blood tests, sputum culture, pulse oximetry, or arterial blood gas. Chest X-ray can show infiltrates or consolidation in the lungs. Sputum culture helps identify the causative organism in selected cases.
7. How is pneumonia treated?
Treatment depends on the cause. Bacterial pneumonia is treated with antibiotics. Viral pneumonia may need antivirals and supportive care. Severe pneumonia may need oxygen, IV fluids, nebulization, hospital admission, or mechanical ventilation.
8. Why is pneumonia dangerous in older adults?
Older adults may have weaker immunity and other health problems. They may not show classic signs such as high fever or strong cough. Confusion, drowsiness, falls, or loss of appetite may be the only early clues. Delayed diagnosis increases the risk of respiratory failure and sepsis.
9. What nursing care is important for pneumonia?
Important nursing care includes monitoring vital signs, respiratory status, oxygen saturation, lung sounds, and sputum. Nurses help keep the head of bed elevated, give oxygen as prescribed, encourage deep breathing, support coughing, and use incentive spirometry. They also teach patients to complete antibiotics and report worsening symptoms. Suctioning may be needed if the patient cannot clear secretions.
10. How can pneumonia be prevented?
Pneumonia prevention includes vaccination, hand hygiene, smoking cessation, avoiding sick contacts, and managing chronic diseases. Post-operative patients should use incentive spirometry, cough, deep breathe, and move early when safe. Good oral care and safe swallowing reduce aspiration risk. People at high risk should follow vaccine and prevention advice from their healthcare provider.

