— 生理適應 · HARD · MCQ —
一位帶有胸腔引流管的病人，其水封瓶（water-seal chamber）出現持續性氣泡，代表什麼意義？
A client with a chest tube has continuous bubbling in the water-seal chamber. What does this suggest?
- AThe system is functioning properly系統運作正常
- BNormal lung re-expansion肺部正常復張
- CExcessive suction pressure吸引壓力過高
- DAir leak in the system✓ 正解系統漏氣
— Explanation · 中文詳解 —
胸腔引流系統（Chest tube system）的水封瓶運作原理是利用水柱作為單向閥，防止空氣重回胸腔。正常情況下，水封瓶液面會隨呼吸起伏（Tidaling）。若出現「持續性氣泡」，代表系統存在「氣漏（Air leak）」，空氣持續從外界進入或肺部破裂處持續漏氣，需立即評估管路連接處及敷料密合度。
The water-seal chamber of a chest tube drainage system operates on the principle of a water column acting as a one-way valve to prevent air from re-entering the pleural cavity. Under normal conditions, the fluid level in the water-seal chamber fluctuates with respiration (tidaling). Continuous bubbling indicates an air leak in the system—either air entering from outside or persistent leakage from a lung defect—and the line connections and dressing seal must be evaluated immediately.