What is the primary concern with a tension pneumothorax?

• A. Pneumonia
• B. Cardiac arrest
• C. Respiratory failure
• D. Hypovolemic shock

Answer: (C)

The primary concern with a tension pneumothorax is respiratory failure. In this condition, air enters the pleural space and cannot escape, leading to increased pressure in the thoracic cavity. This pressure can restrict lung expansion on the affected side, severely impairing ventilation and gas exchange. As a result, the patient may experience significant difficulty breathing, leading to inadequate oxygenation and potential respiratory failure.

While cardiac arrest and hypovolemic shock can be associated complications, they typically occur as secondary effects due to the severe respiratory compromise and hypoxia from the pneumothorax. Pneumonia is not directly related to a tension pneumothorax, but rather a different type of complication that could occur in various scenarios. Understanding that the inability of the lung to fully inflate is key to recognizing why respiratory failure is the most immediate concern in this situation.