A client's chest tube becomes dislodged from the drainage system. Which action should the nurse take?

Rationale: A. Replace the drainage collection system: Replacing the entire drainage system takes time and does not immediately restore the water seal needed to prevent air from entering the pleural cavity. The priority is to reestablish a temporary underwater seal to prevent pneumothorax. B. Clamp the tube near the insertion site: Clamping the chest tube when it is disconnected from the drainage system can trap air in the pleural space, leading to a tension pneumothorax. Clamping should only be done momentarily and under specific provider directions. C. Place the tubing end into sterile water: Submerging the chest tube in sterile water creates an immediate water seal, allowing air to escape from the pleural space while preventing air entry. This action stabilizes intrathoracic pressure until the system can be reconnected or replaced. D. Secure end of the tube with an occlusive dressing: Applying an occlusive dressing to the open chest tube prevents air from escaping, potentially causing a rapid buildup of intrathoracic pressure and a tension pneumothorax. This should never be done in this situation.