護理師教導病人手部衛生，哪項陳述表示病人理解何時應執行手部衛生？
A nurse is educating a client about hand hygiene. Which statement indicates an understanding of when to perform hand hygiene?
- AI will wash my hands after using the toilet and before preparing food.我會如廁後及準備食物前洗手。正確答案
- BI can use hand sanitizer instead of washing my hands after touching a contaminated surface.接觸受污染表面後，我可以用乾洗手代替洗手。
- CI only need to wash my hands if they are visibly dirty.只有當我的手明顯髒污時才需要洗手。
- DI do not need to wash my hands after coughing.咳嗽後我不需要洗手。
- A我會如廁後及準備食物前洗手。
核心概念：手部衛生（hand hygiene）是預防與控制感染最基本、最重要的方法之一。正確執行手部衛生能有效清除或殺死手上的病原體，阻止其傳播給自己或他人。 為何正確答案A對：選項A涵蓋了兩個執行手部衛生的關鍵時機——如廁後（可能接觸糞口途徑傳播的病原體）與準備食物前（避免把手上的病原體帶到食物）。這兩個時機點的落實能顯著降低感染風險。 為何其他選項錯： B. 酒精性乾洗手液在雙手沒有明顯污垢、且未接觸體液或排泄物時是有效的替代方式；但若手部接觸了受污染的表面（尤其有明顯污染或懷疑有大量病原體時）或接觸過體液，則應優先以肥皂和清水搓洗，因為酒精對某些病原體（如困難梭狀桿菌孢子、諾羅病毒）效果不足，也無法去除有機污物。 C. 只在手部明顯髒污時才洗手並不足夠。許多病原體肉眼看不見，即使手看起來乾淨也可能帶有病菌，因此手部衛生應依時機執行，而非僅憑外觀判斷。 D. 咳嗽或打噴嚏會噴出含病原體的飛沫，遮掩口鼻後手部即已受污染，因此咳嗽後即使不覺得手髒也應執行手部衛生。 臨床推理（安全與感染控制）：本題評估病人對手部衛生「時機」的理解，正確的時機判斷是預防感染的基礎；選項A體現了對常見高風險暴露情境的認知。
- A · 正確答案我會如廁後及準備食物前洗手。
如廁後和準備食物前是執行手部衛生的兩個關鍵時機。前者預防糞口傳播，後者預防食源性傳播，涵蓋了重要的感染預防點。
- B接觸受污染表面後，我可以用乾洗手代替洗手。
乾洗手液是方便的替代方案，但僅適用於雙手未明顯髒污且非接觸體液或排泄物後。若手部接觸受污染表面，水洗和肥皂是更佳選擇，因其能更有效地清除不同類型的病原體。
- C只有當我的手明顯髒污時才需要洗手。
手部衛生不應僅限於手部明顯髒污時。許多病原體是肉眼無法看見的，即使手看起來乾淨，也可能沾染病菌，因此需要遵循更廣泛的指引。
- D咳嗽後我不需要洗手。
咳嗽或打噴嚏後，即使手未感覺髒，也應執行手部衛生，因飛沫可能附著於手上，不遮掩或洗手會增加病原體傳播的風險。
手部衛生的重要性與執行時機的指引在美國和台灣是完全一致的，均遵循 WHO 和 CDC 的標準。兩地醫療機構和社區衛教都強調「濕、搓、沖、捧、擦」或使用乾洗手液的時機。台灣的社區藥局和衛生所也經常舉辦相關衛教活動。
English explanation
Core concept: Hand hygiene is one of the most basic and important methods for preventing and controlling infection. Proper hand hygiene effectively removes or kills pathogens on the hands, stopping their transmission to oneself or others. Why correct answer A is right: Option A covers two key times for performing hand hygiene: after using the toilet (possible contact with fecal-oral pathogens) and before preparing food (preventing transfer of pathogens from hands to food). Performing hand hygiene at these moments significantly reduces infection risk. Why the other options are wrong: C. Washing hands only when they are visibly dirty is not sufficient. Many pathogens are invisible to the naked eye, and hands may carry germs even when they appear clean. Hand hygiene should therefore be performed in many more situations, not limited to 'visibly dirty.' B. Hand sanitizer is an effective alternative when the hands are not visibly soiled and have not contacted body fluids or excreta. However, after contact with contaminated surfaces (especially when large amounts of pathogens are visible or suspected) or with body fluids, soap and water should be the first choice, because hand sanitizer may not be sufficient to remove all types of pathogens or soil. D. Coughing and sneezing release droplets containing viruses or bacteria. If the mouth and nose are not covered, these droplets may spread into the air or onto the hands, leading to transmission. Hand hygiene should therefore be performed after coughing (even if the hands do not feel dirty). Clinical reasoning (Safety / Infection Control): This question evaluates the client's understanding of the appropriate timing of hand hygiene. Correct timing is fundamental to effective infection prevention, and option A reflects awareness of common high-risk exposure situations.
最近修訂：2026-10-05