護理師照護一位胸管引流的病人，發現水封瓶持續冒泡。護理師應採取的第一個行動為何？
A nurse is caring for a client who has a chest tube connected to a closed-chest drainage system. The nurse observes continuous bubbling in the water seal chamber. What should the nurse do first?
- AClamp the chest tube夾住胸管
- BChange the drainage unit immediately立即更換引流裝置
- CCheck the system for air leaks✓ 正解檢查系統是否有漏氣
- DIncrease the suction pressure增加抽吸壓力
水封瓶持續冒泡通常代表系統存在漏氣（Air leak）。護理師應優先從插入部位順著管路檢查接頭是否鬆脫，以維持負壓密閉系統的完整性。A項夾住管路會造成張力性氣胸風險，禁止執行；D項與漏氣無關；B項除非確認機器損壞，否則非第一優先處置。
Continuous bubbling in the water seal chamber generally indicates an air leak in the system. The nurse should first check the connections along the tubing, starting from the insertion site, for any loose joints, in order to maintain the integrity of the closed negative-pressure system. Option A (clamping the tubing) carries the risk of tension pneumothorax and is contraindicated; option D is unrelated to an air leak; and option B is not the first-priority action unless the device itself is confirmed to be malfunctioning.
美國護理師對胸管處置權限較大；台灣臨床常需醫師指示後才進行複雜處置，但在排除洩漏點上兩者均為護理標準作業。