護理師照護一位感染艱難梭菌的病人，下列哪項措施對於維持感染控制是必要的？
A nurse is caring for a client with Clostridium difficile infection. Which action is essential to maintain infection control?
- APlace the client in a room with negative air pressure將病人安置於負壓病房
- BUse alcohol-based hand sanitizer after every contact每次接觸後使用酒精性乾洗手液
- CWear a N95 respirator during all client interactions在所有病人互動期間佩戴 N95 呼吸器
- DWash hands with soap and water after providing care✓ 正解提供照護後以肥皂和水洗手
艱難梭菌（C. difficile）會產生具抗藥性的孢子（Spores），酒精類手部消毒劑無法殺滅孢子。因此，照護此類病人後，必須使用肥皂和水進行物理性洗手，透過機械摩擦移除孢子。接觸防護（Contact Precautions）是標準的防疫手段，包括穿戴隔離衣與手套，並將病人安置於單人房或同類感染者房間，而非使用空氣傳播防護的負壓病房。
Clostridium difficile produces resistant spores, and alcohol-based hand sanitizers cannot kill these spores. Therefore, after caring for such a client, the nurse must perform physical handwashing with soap and water, using mechanical friction to remove the spores. Contact Precautions are the standard infection control measure, including the use of a gown and gloves and placing the client in a private room or cohorting with other clients infected with the same organism, rather than using a negative pressure room intended for airborne transmission.