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Zorluk: KolayPulmonary and Critical Care

A 65-year-old man is brought to the emergency department by his family due to a 2-day history of worsening shortness of breath and an increase in the volume and purulence of his sputum. His medical history includes chronic obstructive pulmonary disease and mild heart failure with preserved ejection fraction. Vital signs show a temperature of 37.4°C (99.3°F), blood pressure of 138/86 mm Hg, heart rate of 108/min, respiratory rate of 24/min, and oxygen saturation of 89% on room air. Physical examination reveals a prolonged expiratory phase with diffuse expiratory wheezing bilaterally. There is no jugular venous distention, and no lower extremity edema is appreciated. A chest radiograph demonstrates hyperinflated lung fields and flattened diaphragms without focal consolidations or pleural effusions. An arterial blood gas analysis on room air shows a pH of 7.32, PaCO2 of 54 mm Hg, and PaO2 of 58 mm Hg. Which of the following are appropriate initial management steps for this patient? (Select all that apply)

  1. Administration of nebulized short-acting bronchodilatorsCevap
  2. Administration of a systemic corticosteroidCevap
  3. C
    Administration of intravenous furosemide
  4. D
    Administration of broad-spectrum intravenous antibiotics such as vancomycin and cefepime
  5. E
    Intravenous infusion of sodium bicarbonate

Cevap

The correct interventions are the administration of nebulized short-acting bronchodilators and the administration of a systemic corticosteroid.
The patient is experiencing an acute exacerbation of chronic obstructive pulmonary disease (AECOPD), characterized by the cardinal symptoms of increased dyspnea, increased sputum volume, and increased sputum purulence. The initial medical management of an AECOPD requires aggressive bronchodilation to relieve airflow obstruction and systemic glucocorticoids to reduce airway inflammation. Short-acting bronchodilators (e.g., albuterol, ipratropium) provide rapid relief of bronchospasm. Systemic corticosteroids (e.g., oral prednisone or intravenous methylprednisolone) have been shown to shorten recovery time, improve lung function, and decrease the risk of early relapse. Because the patient has increased sputum purulence, antibiotics are also indicated, but they should be targeted (e.g., azithromycin or doxycycline) rather than broad-spectrum.

Adım Adım Çözüm

1
Identify the primary clinical problem.
Acute exacerbation of chronic obstructive pulmonary disease (AECOPD).
The patient has a history of COPD and presents with the cardinal symptoms of increased dyspnea, increased sputum volume, and increased sputum purulence, alongside physical exam findings of bronchospasm without signs of fluid overload.
2
Evaluate the acid-base status.
Acute-on-chronic respiratory acidosis.
The arterial blood gas shows acidemia (pH 7.32) driven by hypercapnia (PaCO2 54 mm Hg) with partial metabolic compensation, typical for an acute decompensation in COPD.
3
Select appropriate evidence-based therapies.
Short-acting bronchodilators and systemic corticosteroids.
These are the foundational, first-line medical treatments for AECOPD to reduce airway inflammation, relieve bronchospasm, and improve airflow.

Anahtar Kavram

The initial management of an acute exacerbation of COPD requires short-acting bronchodilators, systemic corticosteroids, and targeted (not unnecessarily broad-spectrum) antibiotics if cardinal symptoms are present.
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Pulmonary and Critical Care

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