[{"data":1,"prerenderedAt":64},["ShallowReactive",2],{"q-nurse-114-3-basic-medicine-041":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":34,"lastmod":63},"基礎醫學","basic-medicine","基礎醫學(包括解剖學、生理學、病理學、藥理學、微生物學與免疫學)",{"id":8,"webId":9,"year":10,"session":11,"subject":4,"number":12,"stem":13,"options":14,"answer":19,"answerNote":20,"images":21,"explanation":22,"explanationDeep":23,"topics":24,"freq":27},"nurse-114-3-基礎醫學-041","nurse-114-3-basic-medicine-041",114,3,41,"泌尿道細菌感染的病人尿液複檢，卻呈現細菌培養陰性的結果，下列原因何者最為可能？",{"A":15,"B":16,"C":17,"D":18},"病人正在使用抗生素","尿液收集過程中受到細菌污染","尿液檢體放置在室溫保存","尿液檢體放置超過 24 小時","A",null,[],"本題考點在於尿液細菌培養偽陰性的最可能成因。依抗生素的抑菌原理，病人若已在使用抗生素，尿中藥物濃度足以抑制或殺滅細菌生長，複檢培養便可能長不出菌而呈陰性，(A)最能解釋「原本感染卻培養陰性」，故選A。(B)收集過程受污染會混入雜菌，反而造成偽陽性或多菌落；(C)室溫保存與(D)放置超過24小時皆會讓少量細菌過度繁殖、菌落數上升，同樣導向偽陽性或菌數高估，皆與陰性結果方向相反。","尿液培養判讀的關鍵是採檢前是否已用藥與檢體保存時效。臨床建議在開始抗生素前留取檢體，並於1小時內送驗或冷藏(4℃)以避免菌數失真。偽陰性除抗生素外，還可能因採檢時尿液過度稀釋、或病原為需特殊培養基的菌種。記憶要點：抗生素→壓低菌數→偽陰性；延遲或污染→菌數暴增→偽陽性，兩個方向剛好相反。",[25,28,30,32],{"term":26,"count":27},"尿液細菌培養",1,{"term":29,"count":27},"抗生素抑菌",{"term":31,"count":27},"偽陰性",{"term":33,"count":27},"檢體保存",[35,39,45,49,54,59],{"webId":36,"stem":37,"number":38,"year":10,"session":11},"nurse-114-3-basic-medicine-042","下列何種抗體常以雙聚體方式分泌？",42,{"webId":40,"stem":41,"number":42,"year":43,"session":44},"nurse-115-2-basic-medicine-038","下列何者無法用於治療發炎性腸道疾病（inflammatory bowel disease）？",38,115,2,{"webId":46,"stem":47,"number":44,"year":48,"session":44},"nurse-106-2-basic-medicine-002","下列那一個腺體之組織學特徵具有膠體（colloid）的構造？",106,{"webId":50,"stem":51,"number":52,"year":53,"session":44},"nurse-107-2-basic-medicine-040","黴漿菌（Mycoplasma pneumonia）肺炎的病理特徵為何？",40,107,{"webId":55,"stem":56,"number":57,"year":58,"session":27},"nurse-109-1-basic-medicine-004","下列何者參與形成肩部的旋轉肌袖口（rotator cuff）？",4,109,{"webId":60,"stem":61,"number":42,"year":62,"session":27},"nurse-110-1-basic-medicine-038","有關微量變化疾病（minimal change disease）之敘述，下列何者正確？",110,"2026-09-04",1788510761289]