Which device is inserted through the side of the chest into the pleural space to remove air, fluid, or pus?

• A. Endotracheal intubation
• B. Chest tube
• C. Debridement
• D. FAST exam

Answer: (B)

A chest tube is the device used to drain air, fluid, or pus from the pleural space. It’s inserted through the chest wall into the pleural space and connected to a collection system with suction or an underwater seal, allowing air or fluid to exit while preventing re-entry, which helps the lung re-expand. This is applicable for pneumothorax (air), hemothorax (blood), or empyema (pus) and other pleural effusions. Endotracheal intubation secures the airway, debridement removes nonviable tissue, and a FAST exam is an ultrasound assessment for internal bleeding—not a drainage device.