A nurse is caring for a client who has a disposable three chamber chest tube in place. Which of the following findings should indicate to the nurse that the client is experiencing a complication?

The correct answer is B: Continuous bubbling in the water seal chamber. Continuous bubbling in the water seal chamber indicates an air leak in the system, which is a complication. The water seal chamber should normally have intermittent bubbling as air exits the pleural space. Continuous bubbling suggests a persistent air leak, which can lead to a pneumothorax or compromised lung function. Occasional bubbling in the water seal chamber (choice A) is expected as the system equalizes pressure. Fluctuations in the fluid level in the water seal chamber (choice C) indicate normal functioning. Constant bubbling in the suction control chamber (choice D) is also normal as it regulates the amount of suction applied.