護理師教導免疫系統受損的病人如何預防感染，應建議病人避免哪些事項？（選所有適合的）
A nurse is educating a client with a compromised immune system about infection prevention. Which of the following should the nurse advise the client to avoid? (Select all that apply.)
- AEating raw or undercooked meats.✓ 正解食用生食或未煮熟的肉類
- BReceiving live attenuated vaccines.✓ 正解接種活減毒疫苗
- CVisiting crowded places.✓ 正解造訪擁擠場所
- DGetting adequate rest.獲得充足休息
- EPracticing good hand hygiene.實踐良好手部衛生
核心概念：免疫系統受損（compromised immune system）的病人（如接受化療者、器官移植者、HIV 感染者、患有免疫缺陷疾病者）對感染的抵抗力顯著下降，極易受到伺機性感染（opportunistic infections）的侵襲。因此，預防感染是其照護的重中之重。 為何正確答案 A, B, C 對： A. 避免生食或未煮熟的肉類（raw or undercooked meats）：這些食物可能含有李斯特菌、沙門氏菌、弓蟲等病原體，免疫受損者感染後可能導致嚴重後果，甚至危及生命。 B. 避免接種活的減毒疫苗（live attenuated vaccines）：這類疫苗（如 MMR、水痘疫苗）含有活性但減弱的病毒，對免疫功能正常者是安全的，但對免疫受損者可能引發真正的感染。 C. 避免前往人群擁擠的場所（visiting crowded places）：這些場所是病原體（特別是呼吸道病毒）高度集中的地方，免疫受損者暴露其中，感染風險大大增加。 為何選項 D, E 錯： D. 確保充足的休息（getting adequate rest）有助於維持和增強免疫系統的功能，是預防感染的重要支持性措施，應鼓勵病人執行。 E. 練習良好的手部衛生（practicing good hand hygiene）是預防感染最基本也最有效的方法，能顯著降低接觸傳播的風險，免疫受損者尤其需要嚴格執行。 臨床思路（Safety / Infection Control）：此題的臨床思路是「病人安全」和「感染預防」。對於免疫功能低下的病人，預防措施的嚴格性要求更高，必須識別並避免所有潛在的感染源和高風險暴露。
Core concept: Patients with a compromised immune system (such as those on chemotherapy, organ transplant recipients, HIV-infected persons, or those with immunodeficiency disorders) have significantly reduced resistance to infection and are highly susceptible to opportunistic infections. Therefore, infection prevention is the cornerstone of their care. Why the correct answers A, B, C are correct: A. Avoid raw or undercooked meats: these foods may contain Listeria, Salmonella, Toxoplasma, and other pathogens that can cause severe, even life-threatening illness in immunocompromised patients. B. Avoid live attenuated vaccines: these vaccines (such as MMR and varicella) contain live but weakened virus and are safe for immunocompetent individuals, but may cause actual infection in immunocompromised patients. C. Avoid visiting crowded places: these locations have high concentrations of pathogens (especially respiratory viruses); exposure greatly increases infection risk for immunocompromised individuals. Why options D and E are wrong: D. Adequate rest helps maintain and strengthen immune function and is an important supportive measure for infection prevention; patients should be encouraged to follow it. E. Good hand hygiene is the most basic and effective measure for preventing infection, significantly reducing contact transmission risk; it is especially crucial for immunocompromised patients. Clinical reasoning (Safety / Infection Control): the focus is 'patient safety' and 'infection prevention.' For immunocompromised patients, preventive measures must be stricter, and all potential infection sources and high-risk exposures must be identified and avoided.
對於免疫系統受損病人的感染預防建議，美國（CDC）和台灣（疾管署）的指引是基本一致的，都強調避免生食、活疫苗，以及在人群密集場所的防護。美國在針對特定疾病（如癌症化療、器官移植）的病人教育方面可能有更細緻的指引和支持資源。台灣則會結合社區醫療網絡進行推廣。