護理師照顧傳染病病人，哪項預防措施至關重要？
A nurse is caring for a client with a contagious disease. Which precaution is essential?
- AMaintaining the room at a negative pressure維持房間為負壓
- BRestricting visitors to immediate family only限制訪客僅限直系親屬
- CHand hygiene before and after client contact✓ 正解接觸病人前後執行手部衛生
- DWearing a gown for all client encounters每次接觸病人時穿著隔離衣
手部衛生（Hand hygiene）是預防醫療照護相關感染（HAI）最簡單、最有效且最關鍵的措施。根據標準防護措施（Standard Precautions），無論病人確診為何種傳染病，在接觸病人前後、執行無菌技術前、接觸體液後及接觸病人環境後，皆須嚴格執行手部衛生。雖然其他選項可能適用於特定傳染病，但洗手是所有傳染病預防的通用基石。
Hand hygiene is the simplest, most effective, and most critical measure for preventing healthcare-associated infections (HAI). According to standard precautions, regardless of which infectious disease the client has, hand hygiene must be strictly performed before and after contact with the client, before sterile technique, after contact with body fluids, and after contact with the client environment. Although the other options may apply to specific infectious diseases, handwashing is the universal cornerstone of preventing all infectious diseases.