A nurse is caring for a client who has a chest tube with a closed drainage system. Which of the following actions should the nurse take?

Rationale A. Empty the drainage collection chamber when full: Maintaining an appropriate level of drainage ensures the system functions effectively and reduces the risk of infection or complications. The collection chamber must be replaced when the drainage volume reaches the maximum limit or when specified by policy, ensuring the system remains closed. B. Ensure bubbling is present in the water-seal chamber: Continuous bubbling in the water-seal chamber is abnormal and may indicate an air leak. Intermittent bubbling with respirations is expected, but constant bubbling requires assessment and correction rather than being a desired finding. C. Milk the chest tube at least three times per day: Milking or stripping the chest tube is generally discouraged because it can create high negative pressures, potentially injuring lung tissue. Modern recommendations advise gentle manipulation only if necessary and as per provider guidance. D. Clamp the chest tube when transferring the client from bed to chair: Clamping the chest tube can cause a tension pneumothorax and is unsafe unless specifically ordered for a diagnostic procedure. The tube should remain patent during movement to allow continued drainage and prevent complications.