— 安全與感染控制 · MEDIUM · MCQ —
護理師準備執行無菌換藥。哪項行動顯示違反無菌技術?
A nurse prepares to perform a sterile dressing change. Which action indicates a breach in sterile technique?
- AOpening the sterile drape away from the body first首先將無菌單向遠離身體方向打開
- BPlacing a sterile package on a wet surface✓ 正解將無菌包放置在潮濕表面上
- CFacing the sterile field at all times始終面對無菌區域
- DKeeping hands above waist level保持雙手在腰部以上
— Explanation · 中文詳解 —
無菌技術(Sterile Technique)的原則在於維持無菌區域的乾燥與完整。一旦無菌包裝或敷料接觸到液體,會透過毛細現象(Capillary action)將底層表面的微生物吸附至無菌層,導致污染。因此,必須確保工作表面乾燥。選項 A、D、C 分別符合開啟順序、高度原則與視線監控的無菌操作標準。
Moisture allows microorganisms to migrate through the sterile wrapper via capillary action, thereby contaminating the sterile field. Therefore, placing a sterile package on a wet surface constitutes a breach in sterile technique.