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Difficulty: EasyPharmacologic Interventions

A 68-year-old man with a history of severe chronic obstructive pulmonary disease (COPD) presents to the emergency department with a two-day history of progressively worsening shortness of breath, increased cough frequency, and a change in sputum from clear to thick, yellow-green. Vital signs show a temperature of 37.6°C (99.7°F), blood pressure of 138/86 mmHg, heart rate of 112/min, and respiratory rate of 26/min. Pulse oximetry is 88% on room air. Pulmonary examination reveals diffuse expiratory wheezing with a prolonged expiratory phase. Electrocardiogram shows sinus tachycardia. In addition to providing supplemental oxygen to maintain saturation between 88% and 92%, which of the following pharmacologic interventions are indicated for the initial management of this patient's acute exacerbation? (Select 3)

  1. Nebulized albuterol and ipratropiumAnswer
  2. Oral prednisoneAnswer
  3. Oral azithromycinAnswer
  4. D
    Intravenous metoprolol
  5. E
    Intravenous theophylline

Answer

The correct interventions are nebulized albuterol and ipratropium, oral prednisone, and oral azithromycin.
The acute management of a chronic obstructive pulmonary disease (COPD) exacerbation is based on three main pharmacologic pillars, especially when the patient presents with cardinal symptoms (increased dyspnea, increased sputum volume, and increased sputum purulence). First, short-acting bronchodilators (such as albuterol and ipratropium) are the mainstay of initial treatment to reverse acute bronchoconstriction. Second, systemic corticosteroids (such as oral prednisone) reduce airway inflammation, shorten recovery time, and decrease the risk of relapse. Third, antibiotics (such as azithromycin) are indicated because the presence of increased sputum purulence strongly suggests a bacterial trigger. Together, these three interventions effectively address the acute bronchospasm, underlying inflammation, and infectious precipitant.

Step-by-Step Solution

1
Diagnose the clinical syndrome.
The patient is experiencing an acute exacerbation of COPD.
Characterized by increased dyspnea, increased cough, and a change in sputum volume/purulence.
2
Select interventions to reverse airflow obstruction.
Identify short-acting bronchodilators (albuterol/ipratropium).
These agents provide rapid relief of acute bronchospasm.
3
Select interventions to treat underlying inflammation.
Identify systemic corticosteroids (prednisone).
A short course of systemic steroids improves lung function, oxygenation, and recovery time in severe exacerbations.
4
Evaluate the need for antimicrobial therapy.
Identify antibiotics (azithromycin).
The patient has cardinal symptoms including increased sputum purulence, which is a primary indication for empiric antibiotics to treat a likely bacterial trigger.

Key Concept

The standard triad of pharmacologic therapy for an acute COPD exacerbation with purulent sputum consists of short-acting bronchodilators, systemic corticosteroids, and empiric antibiotics.
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Pharmacologic Interventions

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