Which of the following is a sign of pulmonary compromise?

• A. Chest tightness or discomfort
• B. Persistent cough
• C. Numbness in fingers
• D. Fever

Answer: (A)

Chest tightness or discomfort signals pulmonary compromise because it reflects airway constriction or lung tissue irritation that makes breathing more difficult and can point to impaired gas exchange. When the lungs aren’t able to move air efficiently, people often feel pressure or tightness in the chest as work of breathing increases. A persistent cough can occur for many reasons and doesn’t by itself prove that gas exchange is acutely compromised. Fever suggests infection or inflammation but isn’t a direct sign of current pulmonary function. Numbness in the fingers is not related to the lungs or breathing.