Chest trauma evaluation action in the presence of signs of chest injury.

• A. Insert chest tube if signs of pneumothorax/hemothorax suspected, with imaging if possible.
• B. Do nothing until imaging is complete.
• C. Apply antibiotics only.
• D. Use a tourniquet.

Answer: (A)

When there are signs of chest injury, the priority is to treat a potential pneumothorax or hemothorax promptly so the lung can re-expand and circulation isn’t compromised. Inserting a chest tube provides definitive drainage or air release, which directly addresses the space-occupying problem in the pleural cavity. Doing this even as imaging is obtained (when possible) gets life-threatening issues under control without delaying care. Imaging can then confirm the diagnosis and show how much drainage is needed, but waiting for imaging first risks deterioration if a pneumothorax or hemothorax is present. The other options don’t address the chest injury effectively: antibiotics don’t treat a lung air leak or intrapleural bleeding, and a tourniquet isn’t applicable to chest wall injuries.