A 65-year-old patient with COPD presents with sudden onset of right-sided chest pain and shortness of breath after coughing vigorously. Neck veins flat, trachea midline, lung sounds absent on the right and normal on the left. No fever or hemoptysis. VS: BP 132/78, P 110, R 30 shallow, SpO2 92%. What should you suspect?

A 65-year-old patient with COPD presents with sudden onset of right-sided chest pain and shortness of breath after coughing vigorously. Neck veins flat, trachea midline, lung sounds absent on the right and normal on the left. No fever or hemoptysis. VS: BP 132/78, P 110, R 30 shallow, SpO2 92%. What should you suspect?

• A. Spontaneous pneumothorax
• B. Hyperventilation syndrome
• C. Pulmonary embolism
• D. Pleurisy

Answer: (A)

Sudden unilateral chest pain with shortness of breath and a single side with absent breath sounds in a patient with COPD points to a pneumothorax from rupture of an emphysematous bleb. In COPD, fragile blebs can burst after a bout of coughing, allowing air to enter the pleural space and collapse the lung on the affected side. The midline trachea and flat neck veins suggest this is not a tension pneumothorax, which would push the mediastinal structures and often cause JVD and hypotension. The tachycardia and tachypnea with mild hypoxemia fit respiratory distress from a collapsing lung. The absence of fever or hemoptysis lowers the likelihood of infection or pulmonary embolism in this scenario, and pleurisy wouldn’t usually cause a complete loss of breath sounds on one side. So the presentation is most consistent with a spontaneous pneumothorax, specifically a secondary one related to COPD.

Sudden unilateral chest pain with shortness of breath and a single side with absent breath sounds in a patient with COPD points to a pneumothorax from rupture of an emphysematous bleb. In COPD, fragile blebs can burst after a bout of coughing, allowing air to enter the pleural space and collapse the lung on the affected side. The midline trachea and flat neck veins suggest this is not a tension pneumothorax, which would push the mediastinal structures and often cause JVD and hypotension. The tachycardia and tachypnea with mild hypoxemia fit respiratory distress from a collapsing lung. The absence of fever or hemoptysis lowers the likelihood of infection or pulmonary embolism in this scenario, and pleurisy wouldn’t usually cause a complete loss of breath sounds on one side. So the presentation is most consistent with a spontaneous pneumothorax, specifically a secondary one related to COPD.