[{"data":1,"prerenderedAt":65},["ShallowReactive",2],{"q-nurse-113-3-basic-medicine-042":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":33,"lastmod":64},"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-113-3-基礎醫學-042","nurse-113-3-basic-medicine-042",113,3,42,"下列那一種補體分子促進肥大細胞（mast cell）分化效果最佳？",{"A":15,"B":16,"C":17,"D":18},"C1a","C2a","C3a","C4b","C",null,[],"本題考點在於補體活化產物中的過敏毒素（anaphylatoxin）對肥大細胞的作用。補體活化過程裂解產生的小片段 C3a、C4a、C5a 屬過敏毒素，能結合肥大細胞受體促其活化與脫顆粒；其中 C3a 在促進肥大細胞相關反應的效果被列為最佳，選 C。選項 A「C1a」並非標準補體裂解片段，屬干擾用的錯誤名稱；C2a 是補體活化途徑中形成 C3 轉化酶的組成片段，功能在酵素複合體而非直接刺激肥大細胞；C4b 為與 C2a 結合形成古典途徑 C3 轉化酶的大片段，作用在活化級聯而非過敏毒素效應。此題屬較冷門免疫細節。","過敏毒素效力一般排序 C5a > C3a > C4a，皆可促肥大細胞、嗜鹼性球脫顆粒釋放組織胺，引發平滑肌收縮與血管通透性上升。本題選項未列 C5a 而以 C3a 為答案，作答時抓「a 小片段＝過敏毒素、b 大片段＝續接級聯」的通則即可定位。",[25,28,29,31],{"term":26,"count":27},"補體過敏毒素",1,{"term":17,"count":27},{"term":30,"count":27},"肥大細胞脫顆粒",{"term":32,"count":27},"補體裂解片段命名",[34,38,44,49,54,59],{"webId":35,"stem":36,"number":37,"year":10,"session":11},"nurse-113-3-basic-medicine-043","具先天性第二型主要組織相容性複合體（MHC class II）缺陷的人，體內易有何種病變？",43,{"webId":39,"stem":40,"number":41,"year":42,"session":43},"nurse-114-2-basic-medicine-039","下列何者不是使用 Corticosteroids 藥物治療時常見之副作用？",39,114,2,{"webId":45,"stem":46,"number":47,"year":48,"session":27},"nurse-115-1-basic-medicine-033","藥物動力學（pharmacokinetics）探究藥物的範疇，不包括下列那一項？",33,115,{"webId":50,"stem":51,"number":52,"year":53,"session":43},"nurse-106-2-basic-medicine-051","吸入性全身麻醉劑的 MAC（minimal alveolar concentration）數值越小，其所代表的意義為何？",51,106,{"webId":55,"stem":56,"number":57,"year":58,"session":27},"nurse-108-1-basic-medicine-015","下列何者位於延腦的錐體（pyramids）？",15,108,{"webId":60,"stem":61,"number":62,"year":63,"session":27},"nurse-109-1-basic-medicine-049","有關抗高血壓藥物的敘述，下列何者錯誤？",49,109,"2026-09-04",1788510751842]