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Difficulty: EasyPulmonary and Critical Care

A 6464-year-old male construction worker presents to the emergency department for escalating breathlessness and a productive cough over the past three days. He notes that his baseline morning cough has worsened, and he is now producing thick, yellow-green sputum. His past medical history is significant for severe chronic obstructive pulmonary disease (COPD) and essential hypertension. He is currently compliant with a daily tiotropium inhaler. Vital signs demonstrate a temperature of 37.5∘C37.5^\circ\text{C} (99.5∘F99.5^\circ\text{F}), blood pressure of 132/84132/84 mmHg, heart rate of 9494/min, and respiratory rate of 2424/min. Pulse oximetry shows an oxygen saturation of 91%91\% on room air. Chest auscultation reveals prominent bilateral expiratory wheezing with a prolonged expiratory phase. There are no crackles. The jugular venous pressure is normal, and there is no lower extremity edema. Which of the following is the most appropriate pharmacological management for this patient?

  1. Inhaled albuterol, oral prednisone, and oral azithromycinAnswer
  2. B
    Inhaled albuterol, oral prednisone, and intravenous piperacillin-tazobactam
  3. C
    Intravenous furosemide and noninvasive positive-pressure ventilation
  4. D
    Intravenous bumetanide and oral levofloxacin
  5. E
    Inhaled albuterol, oral prednisone, and intravenous vancomycin

Answer

Inhaled albuterol, oral prednisone, and oral azithromycin
The correct answer provides the standard optimal therapy for an acute exacerbation of chronic obstructive pulmonary disease (COPD) in the emergency department. This patient presents with all three cardinal symptoms: increased dyspnea, increased sputum volume, and increased sputum purulence. Management requires inhaled short-acting bronchodilators (e.g., albuterol) to relieve bronchospasm, systemic corticosteroids (e.g., oral prednisone) to reduce airway inflammation, and an antibiotic to treat potential bacterial triggers. A targeted agent such as a macrolide (e.g., azithromycin) is preferred to cover typical respiratory pathogens while respecting antibiotic stewardship.

Step-by-Step Solution

1
Identify the primary clinical syndrome based on the patient's presentation.
The patient has increased dyspnea, increased sputum volume, and increased sputum purulence, which are the three cardinal signs of an acute exacerbation of chronic obstructive pulmonary disease (COPD).
Recognizing the cardinal symptoms determines the need for specific therapeutic interventions, particularly antibiotics.
2
Evaluate the patient for signs of alternative diagnoses, such as acute decompensated heart failure.
The physical examination shows no crackles, no jugular venous distention, and no lower extremity edema.
Differentiating between a primary pulmonary process and a cardiac process prevents the administration of harmful or ineffective treatments like loop diuretics.
3
Select the appropriate evidence-based interventions for an uncomplicated COPD exacerbation.
The correct regimen includes short-acting bronchodilators, systemic corticosteroids, and a targeted, narrow-spectrum antibiotic (like azithromycin).
This combination addresses bronchoconstriction, airway inflammation, and bacterial infection while adhering to antibiotic stewardship guidelines.

Key Concept

The management of an acute COPD exacerbation with three cardinal symptoms includes short-acting bronchodilators, systemic corticosteroids, and targeted antibiotics (e.g., macrolides or tetracyclines). Broad-spectrum antibiotics should be avoided unless specific risk factors are present.
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Topics

Pulmonary and Critical Care

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