— 安全與感染控制 · MEDIUM · MCQ —
護理師進行換藥時，下列哪項行動展示了正確的無菌技術？
Which of the following actions by a nurse demonstrates proper sterile technique during a dressing change?
- AHolding sterile items at waist level✓ 正解將無菌物品保持在腰部高度
- BSetting up the field on a wet surface在潮濕表面上設置無菌區
- CReaching over the sterile field to grab supplies跨越無菌區抓取用品
- DTurning the back to the sterile field briefly短暫背對無菌區
— Explanation · 中文詳解 —
維持無菌區域的核心原則是保持無菌物品在視線範圍內且高於腰部。A（跨過無菌區）會造成污染；C（轉身背對）會導致視線離開無菌區，無法監控是否污染；D（潮濕表面）會造成滲透污染（Strike-through）。
The core principle for maintaining a sterile field is to keep sterile items within view and above the level of the waist. A (reaching across the sterile field) causes contamination; C (turning the back to the field) takes the field out of view and prevents monitoring for contamination; D (a wet surface) causes strike-through contamination.
✦ 台美臨床差異
在美國臨床教學中更強調對無菌區的視覺監控；台灣則極度重視換藥車的設置與手部消毒程序。