In a patient with a chest tube, an air leak in the pleural space is...

In a patient with a chest tube, an air leak in the pleural space is indicated by an increase in bubbling in the water-seal chamber. Bubbling in this chamber occurs when air escapes from the pleural space into the chest drainage system. An increase in bubbling signifies an ongoing air leak, indicating that air is still entering the pleural space, often due to a bronchopleural fistula or lung injury.References: = CCRN Exam Handbook, page 36