[{"data":1,"prerenderedAt":64},["ShallowReactive",2],{"q-nurse-106-1-basic-medicine-029":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-106-1-基礎醫學-029","nurse-106-1-basic-medicine-029",106,1,29,"缺氧引起之肺血管收縮是為了：",{"A":15,"B":16,"C":17,"D":18},"改善通氣／血流比","增加分流量","減少無效腔","增加通氣量","A",null,[],"本題考點為缺氧性肺血管收縮的生理意義。依呼吸生理,當某區肺泡通氣不足、氧分壓下降時,該區肺小動脈會反射性收縮,稱缺氧性肺血管收縮,目的是把血流導向通氣較佳的肺區,以改善通氣／血流比,故選A。B增加分流量與此相反,收縮正是為了減少流經低通氣區的無效分流。C減少無效腔屬通氣端問題,非此機轉目的。D增加通氣量並非血管收縮所能達成。關鍵在辨識此為肺特有、藉調整血流以維持通氣血流匹配的自我調節。","體循環缺氧使血管舒張,肺循環卻相反、缺氧使血管收縮,是肺獨有的反應,確保血流優先流向含氧高的肺泡。缺點:當廣泛缺氧（如高海拔或慢性肺病）時,全肺血管收縮會升高肺動脈壓,長期造成肺高壓與右心負荷。記法:肺「缺氧就縮」以顧通氣血流比。",[25,28,30,32],{"term":26,"count":27},"缺氧性肺血管收縮",2,{"term":29,"count":11},"通氣血流比",{"term":31,"count":11},"肺循環",{"term":33,"count":11},"分流",[35,39,43,48,53,58],{"webId":36,"stem":37,"number":38,"year":10,"session":11},"nurse-106-1-basic-medicine-030","下列何者會降低氣體擴散穿過肺泡交換膜的能力？",30,{"webId":40,"stem":41,"number":42,"year":10,"session":27},"nurse-106-2-basic-medicine-046","最常見到的乳房良性腫瘤為下列何項？",46,{"webId":44,"stem":45,"number":46,"year":47,"session":11},"nurse-107-1-basic-medicine-060","下列藥物何者不適用於鼻炎（rhinitis）的治療用藥？",60,107,{"webId":49,"stem":50,"number":51,"year":52,"session":27},"nurse-108-2-basic-medicine-018","腦脊髓液是由何處產生？",18,108,{"webId":54,"stem":55,"number":56,"year":57,"session":27},"nurse-109-2-basic-medicine-062","下列何者屬於腦下垂體後葉分泌的激素，可用於治療尿崩症？",62,109,{"webId":59,"stem":60,"number":61,"year":62,"session":11},"nurse-111-1-basic-medicine-016","下列何種神經節主要負責傳遞一般體表感覺訊息？",16,111,"2026-09-04",1788510691029]