護理師照護一位懷疑肺結核需採空氣隔離的病人，下列哪項措施最能確保安全？
A nurse is caring for a client on airborne precautions for suspected tuberculosis. Which action is the most important to ensure safety?
- APerforming hand hygiene before touching the client在接觸病患前執行手部衛生
- BLimiting the number of visitors to the room限制進入病房的訪客人數
- CPlacing the client in a negative-pressure room✓ 正解將病患安置於負壓隔離室
- DWearing a surgical mask when entering the room進入病房時佩戴外科口罩
肺結核（Tuberculosis, TB）的傳播途徑為空氣傳播（Airborne transmission）。當病人咳嗽或說話時，結核菌會懸浮在飛沫核（Droplet nuclei）中，這些微粒極小且可長時間懸浮於空氣中。負壓隔離室（Airborne Infection Isolation Room, AIIR）透過維持室內低於走廊的氣壓，確保空氣僅能流入病室，並經由高效能過濾網（HEPA）過濾後排出，是阻斷傳播鏈的核心措施。
Tuberculosis (TB) is transmitted by the airborne route. When a client coughs or talks, Mycobacterium tuberculosis is suspended in droplet nuclei, which are very small and can remain in air for prolonged periods. An Airborne Infection Isolation Room (AIIR) maintains negative pressure relative to the corridor, ensuring that air flows into the room and is exhausted only after passing through a HEPA filter, which is the key measure for interrupting the chain of transmission.