— 生理適應 · EASY · MCQ —
護理師照護一位接有密閉式胸腔引流系統的病人，下列何者顯示該系統運作正常？
A nurse is caring for a patient with a chest tube connected to a closed-chest drainage system. What finding indicates the system is working properly?
- AConstant bubbling in the water seal chamber水封瓶內持續冒泡
- BFluctuation of the fluid level in the water seal chamber✓ 正解水封瓶內液面隨呼吸波動
- CNo drainage in the collection chamber after 8 hours收集瓶在8小時後無引流液
- DDrainage output of 300 mL in one hour一小時內的引流輸出量為300 mL
— Explanation · 中文詳解 —
水封瓶中的液面隨呼吸波動（Tidaling）是肺部擴張正常的生理現象。A 是氣胸嚴重漏氣的徵象；C 出血量過大，代表活動性出血；D 可能引流管阻塞或肺部已完全復張，雖需評估但波動才是系統運作正常的指標。
Fluctuation of the fluid level in the water seal chamber, known as tidaling, is a normal physiological sign indicating that the chest tube system is patent and functioning correctly. This movement reflects changes in intrapleural pressure during respiration, whereas constant bubbling suggests an air leak.
✦ 台美臨床差異
美國醫院多使用乾式引流系統，台灣仍常見濕式引流瓶，操作差異需依單位指引。