護理師準備執行手術傷口的無菌換藥。下列哪項行動符合外科無菌技術？
A nurse is preparing to perform a sterile dressing change for a surgical incision. Which action maintains surgical asepsis?
- AConsider the outer 1-inch border of the sterile field as contaminated✓ 正解將無菌區域的外圍1英吋邊緣視為已污染
- BPour sterile solution holding the bottle 10 inches above the tray將無菌溶液瓶舉起10英吋高於托盤進行傾倒
- CKeep the sterile field within line of sight at all times隨時讓無菌區域保持在視線範圍內
- DPlace the sterile package on a waist-high surface將無菌包裝放置在腰部高度的平面上
無菌技術的核心在於維持無菌區域的邊界。無菌包裝的邊緣 1 英寸（約 2.5 公分）被視為可能接觸過未消毒表面，因此被視為污染區域。這項規則是外科無菌原則的基礎，用以預防醫源性感染。其他選項如保持視線範圍是原則，但邊界判斷是界定無菌區域與否的關鍵標準。
The core of aseptic technique is maintaining the boundary of the sterile field. The outer 1-inch (approximately 2.5 cm) border of a sterile package is considered to have potentially contacted unsterile surfaces and is therefore regarded as contaminated. This rule is fundamental to surgical asepsis and is used to prevent iatrogenic infection. Other options such as maintaining the field within line of sight are principles, but the border rule is the key standard for defining the sterile area.
台美在無菌技術要求原則一致，但美國臨床更嚴格要求在操作過程中全程有第三方查核。