護理師照護一位需執行空氣傳染隔離的肺結核病人，進入病室時最關鍵的個人防護裝備為何？

肺結核（Pulmonary Tuberculosis, TB）是一種嚴重的傳染病，主要透過空氣微粒（droplet nuclei）傳播。因此，當病人確診為肺結核並需進行隔離時，必須採取嚴格的感染控制措施，以保護醫護人員及其他病人。 正確答案 B 是進入空氣傳染隔離（Airborne Precautions）病室時最關鍵的個人防護裝備（Personal Protective Equipment, PPE）。N95 呼吸器（respirator）是一種高效能的過濾口罩，能夠過濾空氣中 95% 以上、直徑 0.3 微米或更大的微粒，包括結核桿菌的傳播媒介。這提供了呼吸道所需的最高等級保護。 錯誤選項 D（外科口罩）僅能過濾較大的飛沫，無法有效阻擋空氣中細小的結核桿菌微粒，因此不足以用於空氣傳染隔離。錯誤選項 A（護目鏡）主要用於防護噴濺物進入眼睛，與預防吸入空氣傳播的病原體無關。錯誤選項 C（無菌手套）用於預防接觸傳播，對於空氣傳播的疾病沒有保護作用。 臨床思路：執行空氣傳染隔離時，護理師必須熟知並正確穿戴 N95 口罩。在進入病室前穿戴，離開時在病室外或指定區域脫除，並執行手部衛生，以防止將病原體帶出病室。 安全優先：正確使用 N95 呼吸器是預防醫護人員感染結核病的根本保障。

Pulmonary tuberculosis (TB) is a serious infectious disease transmitted primarily by airborne droplet nuclei. Therefore, when a patient is diagnosed with TB and requires isolation, strict infection control measures must be taken to protect healthcare workers and other patients. The correct answer B is the most critical personal protective equipment (PPE) when entering a room under airborne precautions. The N95 respirator is a high-efficiency filter mask capable of filtering 95% or more of airborne particles 0.3 microns or larger in diameter, including the carriers of the tuberculosis bacillus. This provides the highest level of respiratory protection. Incorrect option D (a surgical mask) only filters larger droplets and cannot effectively block fine airborne TB particles, so it is insufficient for airborne precautions. Incorrect option A (goggles) is primarily used to protect against splashes entering the eyes and is not relevant to preventing the inhalation of airborne pathogens. Incorrect option C (sterile gloves) is used to prevent contact transmission and provides no protection against airborne disease. Clinical reasoning: When implementing airborne precautions, the nurse must be familiar with and correctly don the N95 respirator. It is put on before entering the room and removed outside the room or in a designated area, with hand hygiene performed afterward, to prevent transporting pathogens out of the room. Safety priority: Proper use of the N95 respirator is the fundamental safeguard against tuberculosis infection in healthcare workers.

肺結核（TB）的空氣傳染隔離措施在台美兩地是完全一致的，均遵循 CDC 指引，要求使用 N95 或同等級的呼吸器。兩地醫療機構都會提供 N95 口罩，並對醫護人員進行正確穿戴與脫除的培訓。這是預防職業暴露的標準做法。