Which feature characterizes tension pneumothorax symptoms?

• A. Similar to simple, becomes more intense, falling blood pressure, lowered arterial oxygen partial pressure, blush of the skin, shock and death if untreated
• B. Only mild chest discomfort
• C. High blood pressure
• D. No change in vital signs

Answer: (A)

Tension pneumothorax creates a dangerous pressure buildup in the chest that compresses the lung and shifts the mediastinum, drastically reducing venous return to the heart. That drop in return leads to a rapid fall in cardiac output and worsening oxygen delivery. As a result, you see quickly escalating symptoms with falling blood pressure, reduced arterial oxygen (hypoxemia), and signs of poor perfusion such as skin color change or cyanosis, progressing toward shock and potentially death if not treated immediately. This combination—rapid deterioration toward hypotension and hypoxemia with signs of shock—best fits the scenario. In contrast, only mild chest discomfort, high blood pressure, or no change in vital signs don’t reflect the life-threatening, pressure-driven circulatory compromise seen in tension pneumothorax.