A nurse is contributing to the plan of care for a client who has a chest tube set to continuous suction to relieve a pneumothorax. Which of the following interventions should the nurse include?

Rationale: A. Clamp the chest tube every 4 hr: Routine clamping of a chest tube is not recommended, as it can lead to tension pneumothorax by trapping air in the pleural space. Clamping is only done briefly and for specific reasons, such as system checks or before removal. B. Place the client in a supine position: The supine position can impair lung expansion and hinder drainage from the pleural space. Clients with a chest tube are best positioned in semi-Fowler’s or high-Fowler’s to promote ventilation and facilitate drainage. C. Ensure the device is kept below the level of the client's chest: Keeping the drainage system below chest level promotes gravity-assisted drainage and prevents backflow of air or fluid into the pleural space, which could compromise lung re-expansion. D. Empty the collection chamber every 8 hr: The collection chamber is not emptied; it is replaced when full. Opening the system introduces infection risk and disrupts the closed drainage system necessary for maintaining negative pressure.