A 62-year-old retired mechanic comes to the outpatient clinic with a 3-day history of prog… — USMLE Step 2 CK

A $62$ -year-old retired mechanic comes to the outpatient clinic with a $3$ -day history of progressively worsening dyspnea. He states that his daily morning cough has become more frequent and is now producing thick, dark yellow sputum in significantly greater amounts than usual. His medical history is significant for chronic obstructive pulmonary disease and hypertension. He previously smoked $2$ packs of cigarettes daily for $20$ years before quitting $5$ years ago. His temperature is $37.6^\circ\text{C}$ ( $99.7^\circ\text{F}$ ), pulse is $98/\text{min}$ , respirations are $22/\text{min}$ , and blood pressure is $135/85\text{ mmHg}$ . Pulse oximetry shows $93\%$ on ambient air. Pulmonary auscultation demonstrates a prolonged expiratory phase with diffuse bilateral wheezing. Cardiovascular examination is unremarkable with no jugular venous distention. There is no peripheral edema. Which of the following therapeutic interventions are indicated for this patient? (Select all that apply)

Systemic administration of glucocorticoidsAnswer
Nebulized short-acting bronchodilator therapyAnswer
Prescription of an oral macrolide antibioticAnswer
D
Intravenous administration of a loop diuretic
E
Intravenous administration of broad-spectrum antibiotics covering Pseudomonas aeruginosa

Answer

The correct interventions are the systemic administration of glucocorticoids, nebulized short-acting bronchodilator therapy, and the prescription of an oral macrolide antibiotic.

The correct interventions form the standard-of-care bundle for managing an acute chronic obstructive pulmonary disease (COPD) exacerbation. This patient presents with the three classic cardinal symptoms: increased dyspnea, increased sputum volume, and increased sputum purulence. Management for this triad includes short-acting bronchodilators to acutely relieve bronchospasm, systemic glucocorticoids to decrease airway inflammation and improve recovery time, and oral antibiotics (such as a macrolide) to treat common bacterial triggers.

Step-by-Step Solution

Analyze the patient's clinical presentation and vital signs.

The patient exhibits worsening dyspnea, increased sputum volume, and increased sputum purulence, without signs of fluid overload or hemodynamic instability.

Identifying the three cardinal symptoms confirms an acute COPD exacerbation that requires a specific treatment bundle.

Select interventions to immediately relieve airway obstruction and inflammation.

Short-acting bronchodilators and systemic glucocorticoids are chosen.

These therapies are the cornerstone of COPD exacerbation management to rapidly improve airflow and shorten the duration of the exacerbation.

Evaluate the indication and setting for antimicrobial therapy.

An oral macrolide is selected.

The presence of all three cardinal symptoms strongly suggests a bacterial trigger, warranting targeted, narrow-spectrum outpatient oral antibiotics rather than broad-spectrum intravenous agents.

Key Concept

The initial management of an acute COPD exacerbation with all three cardinal symptoms includes short-acting bronchodilators, systemic glucocorticoids, and targeted antibiotic therapy.

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