PP 3

Overview of Pleural Effusions

  • Definition: Pleural effusion is the accumulation of excess fluid in the pleural space, the area between the lungs and the chest wall.

  • Causes:

    • Leaky Capillaries: Inflammation leads to leaky capillaries, causing fluid accumulation.

    • Pulmonary Infections: Infections can lead to pleural effusions.

    • Trauma: Trauma can lead to bleeding, resulting in a hemothorax, necessitating surgical intervention.

    • Malignancy: Reoccurring pleural effusions can indicate lung cancer.
      \n- Diagnosis and Symptoms:

    • Pleural Centesis: A procedure to remove excess fluid.

    • Signs and Symptoms: Muffled breath sounds due to fluid, dull percussion sounds, decreased or muffled breath sounds, and sharp localized pain.
      \n- Fluid Characteristics and Treatment:

    • Purulent Fluid: If fluid is pus-filled, patient requires antibiotics.

    • Blood: Bright red, continuously collecting fluid indicates the need for surgical intervention.

    • Serous Fluid: Watchful waiting, further investigations for malignancy.

Pneumothorax

  • Definition: Pneumothorax is the collapse of a lung due to air collecting in the pleural space.

  • Causes:

    • Trauma: Most common cause, but can also be caused by congenital blebs or severe coughing.

    • Medical Procedures: Certain medical procedures may inadvertently cause a pneumothorax.
      \n- Symptoms:

    • Asymmetrical chest movements, sudden shortness of breath, decreased breath sounds on the affected side, tracheal deviation due to the shifting of mediastinal structures towards the unaffected side.
      \n- Emergency Treatment:

    • Chest Tubes: Insertion of a chest tube to remove air from the thoracic cavity allows for lung re-expansion.

    • Signs of Improvement: Increased breath sounds, decreased dyspnea, symmetrical tracheal movements, pulse oximetry normalization.
      \n# Atelectasis

  • Definition: Collapse of alveoli, differing from pneumothorax which is a lung collapse.

  • Diagnosis:

    • Sputum Examination: Differentiate between atelectasis and pneumonia based on bacterial presence.

    • Auscultation: Fine crackles may be present in atelectasis.
      \n# Acute Respiratory Distress Syndrome (ARDS)

  • Definition: Inflammation damages alveolar membranes, hindering gas exchange.

  • Causes:

    • COVID-19, pneumonia, aspiration, other infectious processes.

  • Consequences: Leads to stiff lungs, low compliance, high mortality rate. \n- Symptoms: Patients show signs of respiratory failure despite oxygen therapy; may require mechanical ventilation. \n- Nursing Considerations:

    • Open airway maintenance, oxygen therapy initiation, monitoring lung sounds and respiratory effort.
      \n# Restrictive Lung Diseases

  • Definition: Characterized by limited airflow due to decreased lung compliance.

  • Examples: Chronic Obstructive Pulmonary Disease (COPD) and asthma.
    \n## Asthma

  • Definition: Chronic inflammatory disease of the airways.

  • Triggers: Allergens (e.g., pollen, dust), irritants (e.g., smoke), exercise, and respiratory infections. \n- Symptoms: Shortness of breath, increased respiratory rate, wheezing due to narrowed airways. \n- Management:

    • Bronchodilators: Short-acting for emergencies, corticosteroids for control.

    • Patient Education: Identifying triggers, peak flow monitoring, understanding when to use medications.
      \n## Chronic Obstructive Pulmonary Disease (COPD)

  • Definition: Progressive, irreversible airflow limitation.

  • Symptoms: Chronic cough, dyspnea, wheezing, clubbing, cyanosis. \n- Nursing Care:

    • Breathing techniques: Pursed lip breathing to reduce CO2 retention and diaphragmatic breathing for lung expansion.

    • Medications: Long-acting bronchodilators and steroids as needed.

    • Vaccination prophylaxis: To prevent pneumonia and respiratory infections.
      \n# Cystic Fibrosis

  • Definition: Genetic disorder leading to the production of thick mucus affecting lungs and pancreatic function. \n- Symptoms: Frequent lung infections, malabsorption, poor growth. \n- Management:

    • Pancreatic Enzyme Replacement: To assist with digestion.

    • Chest Physiotherapy: To clear secretions.
      \n# Pulmonary Fibrosis

  • Definition: Scarring of lung tissue due to various diseases and exposures, reducing lung compliance.

  • Risks: Inhaled toxins (e.g., asbestos), radiation, autoimmune diseases.
    \n# Pulmonary Embolism (PE)

  • Definition: A blockage in one of the pulmonary arteries in the lungs usually caused by blood clots from the legs (DVTs). \n- Symptoms: Sense of impending doom, difficulty breathing, tachypnea. \n- Diagnosis: D-dimer tests, imaging. \n- Treatment:

    • Anticoagulants: To prevent new clots.

    • Thrombolytics: For dissolving existing clots.
      \n# Pulmonary Edema

  • Definition: Accumulation of fluid in the alveoli due to heart failure or fluid overload.

  • Symptoms: Pink frothy sputum as a hallmark of pulmonary edema. \n- Management:

    • Diuretics (e.g., Furosemide): To remove excess fluid quickly.

    • Nursing Assessment: Monitor lung sounds and urinary output to assess treatment efficacy.