A nurse is caring for a client following the placement of a chest tube drainage system for a pneumothorax. Which of the following findings should the nurse expect?

A. Serous drainage noted in the collection chamber: The type of drainage typically seen with a pneumothorax is not serous; it is usually minimal or absent. If there is significant drainage, it could indicate bleeding or another issue that should be monitored. B. Tidaling in the water seal chamber with respirations: Tidaling, or the movement of the water level in the water seal chamber with respirations, is a normal finding. It indicates that the chest tube is correctly placed, and the lung is expanding and contracting. C. Diminished breath sounds in the lung bases: Diminished breath sounds are expected in the area where the pneumothorax occurred, but it does not specifically indicate the placement of the chest tube. D. Movement of the trachea toward the unaffected side: Tracheal deviation toward the unaffected side is a sign of tension pneumothorax, which is a medical emergency. It should not be expected following the placement of a chest tube for a pneumothorax, as the goal of the chest tube is to resolve the pneumothorax and prevent complications.