➤ How does a chest tube (tube thoracostomy) correct an open pneumothorax?
A chest tube drains intrapleural air and any blood, restoring negative intrathoracic pressure and allowing the lung to re-expand. It attaches to a sealed drainage system with water-seal and optional suction to prevent air re-entry. After insertion, clinicians secure the tube, monitor for air leaks, and assess respiratory improvement.
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