If a chest tube water seal chamber shows continuous bubbling, what is the recommended action for the nurse?

• A. Notify provider
• B. Clamp the chest tube
• C. Increase suction
• D. Nothing special

Answer: (A)

Continuous bubbling in the water-seal chamber signals an ongoing air leak from the chest or the drainage system, which is not a normal finding. The water-seal acts as a one-way valve to prevent air from entering the pleural space, so bubbling should be minimal and related only to a brief cough or deep breath. When bubbling is persistent, it means air is continuously escaping, and the patient’s status or the integrity of the drainage setup needs evaluation. This requires prompt nursing action to advance care—notify the provider so they can assess for potential causes such as a leak at the insertion site, a disconnection in the tubing, or a persistent pulmonary air leak and decide on the appropriate intervention.

Avoid clamping the chest tube or increasing suction in this situation, as these interventions can worsen the condition or mask the problem and may precipitate a tension pneumothorax. Doing nothing is inappropriate because a continuous air leak can indicate a significant complication. In the meantime, the nurse can perform a quick check of connections and ensure the system is intact and the drainage collection bottle is below chest level, but the definitive step is to alert the clinician for further management.