[{"data":1,"prerenderedAt":66},["ShallowReactive",2],{"q-nurse-108-2-basic-medicine-059":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":34,"lastmod":65},"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-108-2-基礎醫學-059","nurse-108-2-basic-medicine-059",108,2,59,"靜脈注射 adenosine 可治療急性上心室（supraventricular）心律不整，主要作用機制為何？",{"A":15,"B":16,"C":17,"D":18},"活化 A1 受體，抑制鈣離子通道，同時活化鉀離子通道","抑制 A1 受體，活化鉀離子通道，同時活化鈉鉀幫浦","活化 A2 受體，活化鈣離子通道，同時活化鉀離子通道","抑制 A2 受體，抑制鈣離子通道，同時活化鉀離子通道","A",null,[],"本題考點在adenosine終止陣發性上心室心律不整的細胞機轉。依藥理學，adenosine活化房室結細胞上的A1受體，經抑制性G蛋白抑制鈣離子內流、同時活化鉀離子外流通道，使細胞過極化並延長房室結傳導、暫時阻斷折返路徑而終止心律不整，故選A。B活化鈉鉀幫浦、C活化A2並開啟鈣通道、D抑制A2等敘述，皆與A1受體『抑鈣、開鉀』的正確機轉方向不符。","adenosine作用於A1受體→活化Gi→抑制腺苷酸環化酶並開啟GIRK（內向整流鉀通道），鉀外流使膜過極化、鈣內流減少，房室結傳導被短暫壓制，恰好打斷經房室結的折返性上心室心搏過速。因半衰期極短（數秒），須快速靜脈推注。理論咖啡因、茶鹼為腺苷受體拮抗劑，會削弱其效。記憶口訣：A1受體『抑鈣開鉀、壓房室結』。可連結：A1受體與Gi、GIRK鉀通道、房室結折返、半衰期極短快推。",[25,28,30,32],{"term":26,"count":27},"adenosine活化A1受體",1,{"term":29,"count":27},"抑制鈣通道與活化鉀通道",{"term":31,"count":27},"房室結傳導阻斷",{"term":33,"count":27},"上心室心搏過速折返",[35,39,44,49,54,60],{"webId":36,"stem":37,"number":38,"year":10,"session":11},"nurse-108-2-basic-medicine-060","下列何種降血壓藥物，禁止用於孕婦？",60,{"webId":40,"stem":41,"number":42,"year":43,"session":27},"nurse-109-1-basic-medicine-076","某些病毒感染與人類腫瘤的發生具高度相關性。下列病毒感染與其相關聯之腫瘤發生之配對關係，何者錯誤？",76,109,{"webId":45,"stem":46,"number":47,"year":48,"session":27},"nurse-110-1-basic-medicine-010","總膽管與胰管匯聚形成肝胰壺腹（hepatopancreatic ampulla），開口於下列何處？",10,110,{"webId":50,"stem":51,"number":52,"year":53,"session":27},"nurse-111-1-basic-medicine-048","下列何者是病理性骨折（pathological fracture）？",48,111,{"webId":55,"stem":56,"number":57,"year":58,"session":59},"nurse-112-3-basic-medicine-022","下列何者不是下肢深部靜脈血栓（deep venous thrombosis）常引起的臨床表現？",22,112,3,{"webId":61,"stem":62,"number":63,"year":64,"session":27},"nurse-114-1-basic-medicine-016","下列何者不具支撐子宮（uterus）的功能？",16,114,"2026-09-04",1788510705317]