— 降低風險 · EASY · MCQ —
護理師進行換藥時，下列哪項行動展現了正確的無菌技術？
Which of the following actions by a nurse demonstrates proper sterile technique while performing a dressing change?
- AHolding sterile objects above waist level✓ 正解將無菌物品保持在腰部以上
- BTurning the back to the sterile field briefly短暫背對無菌區
- CReaching over the sterile field to save time為了節省時間而跨越無菌區
- DPlacing the sterile package on a wet surface將無菌包裝放置在潮濕表面上
— Explanation · 中文詳解 —
無菌技術（sterile technique）的核心在於維持無菌區（sterile field）的完整性。無菌物品必須維持在視線範圍內且高於腰部，因為低於腰部時，護理師難以持續監控，容易發生無意間的污染。任何跨越、背對無菌區或將無菌物品置於濕潤表面的行為，皆會因空氣流動帶入微生物或產生毛細現象（capillary action）將細菌從下方表面吸入無菌區，造成污染。
Proper sterile technique requires maintaining sterile objects above waist level and within the nurse's line of sight to prevent accidental contamination. Items held below the waist are considered contaminated because they fall outside the visual field, increasing the risk of inadvertent contact with non-sterile surfaces or personnel.