A client who is admitted to the emergency department (ED) following a motorcycle collision is having difficulty breathing. While assessing the client's chest and lungs, the nurse notes that there are no breath sounds over the left lung fields. Which action(s) should the nurse implement? Select all that apply.

A. Apply high-flow oxygen by face mask. The client is in respiratory distress with absent breath sounds over the left lung field, which is highly suggestive of a pneumothorax or hemothorax. High-flow oxygen helps improve oxygenation while preparing for definitive intervention. In cases of tension pneumothorax, oxygen can help reduce hypoxia until a chest tube or needle decompression is performed. B. Obtain a chest tube insertion kit. Absent breath sounds on one side following chest trauma strongly suggest a pneumothorax or hemothorax, requiring immediate chest tube placement to re-expand the lung and restore normal ventilation. The nurse should ensure that the equipment for thoracostomy (chest tube insertion) is readily available for the healthcare provider. C. Withhold narcotic pain medication. Pain control is important in trauma patients, as uncontrolled pain can lead to shallow breathing, atelectasis, and respiratory complications. Narcotics should be used cautiously in clients with respiratory distress, but they are not contraindicated if given at appropriate doses with close monitoring. D. Elevate the head of the bed 45 degrees. Clients with respiratory distress should be positioned with the head of the bed elevated to improve lung expansion. However, in a suspected pneumothorax, the priority is oxygenation and chest tube insertion. If there is hemodynamic instability, the client may require a flat or semi-Fowler’s position instead. E. Place client in Trendelenburg position. The Trendelenburg position (head down, feet up) is not appropriate in chest trauma patients. This position can increase intra-abdominal pressure, worsen breathing difficulty, and impair lung expansion. It is typically avoided in clients with respiratory distress or suspected pneumothorax.