What is the purpose of a chest tube when treating a pneumothorax?

• A. To remove blood
• B. To remove air
• C. To stabilize blood pressure
• D. To aid in ventilation

Answer: (B)

A chest tube is primarily utilized when treating a pneumothorax to remove air that has accumulated in the pleural space. A pneumothorax occurs when air enters the pleural cavity, leading to lung collapse, impaired gas exchange, and potential respiratory distress. By placing a chest tube, healthcare providers can effectively aspirate the air, allowing the lung to re-expand as the pressure in the pleural space is normalized. The removal of air is crucial in restoring effective lung function and preventing further complications associated with impaired ventilation.

In this context, while a chest tube may also be used in other scenarios such as hemothorax (to remove blood) or in specific cases of ventilator support, its specific role in a pneumothorax is focused on air removal to facilitate lung recovery.