一位病患接有胸管引流系統，護理師觀察到水封瓶（water seal chamber）有持續氣泡。這代表什麼？
A nurse is caring for a client with a chest tube drainage system. The nurse observes continuous bubbling in the water seal chamber. What does this indicate?
- AA normal finding for a new chest tube新置入胸管的正常發現
- BThe system is functioning correctly系統運作正常
- CThe lung has successfully re-expanded肺已成功復張
- DThere is an air leak in the system✓ 正解系統中有氣漏
胸管水封瓶（water seal chamber）的功能在於維持單向閥機制，防止空氣進入胸膜腔。正常情況下，水封瓶應隨呼吸出現波動（tidaling），僅在用力咳嗽或深呼吸時出現短暫氣泡。若出現「持續性」氣泡，代表空氣持續進入系統或胸膜腔，顯示系統密封性受損或病人肺部氣漏未癒合，必須立即檢查系統連接處及傷口敷料。
Continuous bubbling in the water seal chamber indicates an air leak within the system or from the client's lung, as normal function involves only intermittent bubbling during coughing or tidaling with respiration. This finding requires immediate assessment of system connections and the insertion site to identify the source of the leak.
在美國臨床，護理師需熟悉各種型號引流瓶（如 Atrium, Pleur-evac）的操作。若發生持續氣泡，除了檢查管路，還需遵循機構政策（Policy）決定是否需夾管（clamping）測試漏氣點，但需極度謹慎以防張力性氣胸。