護理師照護一位因 MRSA 採取接觸隔離措施的病人，下列哪項行動對於預防感染散播最重要？
A nurse is caring for a client on contact precautions for MRSA. Which action is the most important to prevent the spread of the infection?
- ACleaning the stethoscope with alcohol after each use每次使用後以酒精清潔聽診器
- BMaintaining a distance of 6 feet from the client與病人保持六英尺距離
- CPerforming hand hygiene before and after entering the room✓ 正解進入房間前後執行手部衛生
- DWearing a surgical mask while in the room在房間內佩戴外科口罩
接觸隔離（Contact Precautions）的核心目的是阻斷透過直接或間接接觸傳播的病原體。MRSA 主要透過受污染的雙手或器械傳播，手部衛生（Hand Hygiene）是降低醫療照護相關感染（HAI）最有效、成本最低的措施。護理師在接觸病人前後執行手部衛生，能直接移除或殺滅手部沾染的病原體，防止交叉感染。
The core purpose of Contact Precautions is to interrupt the transmission of pathogens spread through direct or indirect contact. MRSA is transmitted primarily via contaminated hands or equipment, and hand hygiene is the most effective and lowest-cost measure for reducing healthcare-associated infections (HAIs). By performing hand hygiene before and after patient contact, the nurse directly removes or kills pathogens on the hands and prevents cross-contamination.
美國醫院極度強調「五個時刻」的手部衛生，且對於隔離病房的防護裝備（如手套、隔離衣）要求極為嚴格，違規可能面臨嚴重的行政處分。