[{"data":1,"prerenderedAt":63},["ShallowReactive",2],{"q-nurse-115-1-basic-medicine-005":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":33,"lastmod":62},"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":11},"nurse-115-1-基礎醫學-005","nurse-115-1-basic-medicine-005",115,1,5,"下列氣體與血紅素的親合力，何者最高？",{"A":15,"B":16,"C":17,"D":18},"氧","一氧化碳","二氧化碳","氮","B",null,[],"本題考點在於各氣體與血紅素結合親合力的高低排序。依一氧化碳中毒的病生理,一氧化碳與血紅素的血基質鐵結合形成一氧化碳血紅素,親合力約為氧氣的 200 至 250 倍,且會使氧解離曲線左移而妨礙組織釋氧,故選 B。A 氧與血紅素的結合具可逆性與合作性,親合力遠低於一氧化碳。C 二氧化碳在血中主要以碳酸氫根運送,少部分與血紅素的胺基端結合成碳醯胺基血紅素,並非與血基質鐵競爭結合位。D 氮在生理狀態下僅以物理性溶解存在,不與血紅素結合。","一氧化碳中毒的雙重傷害要一起記:第一是佔位,搶走氧的結合位使攜氧量下降;第二是左移,已結合的氧更不願在組織釋放,造成組織缺氧比血氧數字看起來嚴重。也因為一氧化碳血紅素顏色鮮紅,患者皮膚可呈櫻桃紅而不見發紫,且脈衝式血氧監測儀無法區分氧血紅素與一氧化碳血紅素,讀值會假性偏高——這是考題最愛的陷阱,正確評估需靠一氧化碳血紅素濃度測定。二氧化碳運送三途徑比例值得背:碳酸氫根約七成、與血紅素結合約兩成多、物理溶解約百分之七至十。延伸可連結氧解離曲線左右移因素(pH、溫度、2,3-DPG)與 Haldane、Bohr 效應。",[25,27,29,31],{"term":26,"count":11},"一氧化碳血紅素",{"term":28,"count":11},"血紅素親合力",{"term":30,"count":11},"氧解離曲線左移",{"term":32,"count":11},"二氧化碳運送形式",[34,38,43,47,52,57],{"webId":35,"stem":36,"number":37,"year":10,"session":11},"nurse-115-1-basic-medicine-006","神經細胞於靜止膜電位階段，細胞膜對鈉離子與鉀離子的通透性為何？",6,{"webId":39,"stem":40,"number":41,"year":42,"session":11},"nurse-106-1-basic-medicine-002","下列何者在組織學特徵上可區分為絲球帶（zona glomerulosa）、束狀帶（zona fasciculata）、網狀帶（zona reticularis）？",2,106,{"webId":44,"stem":45,"number":46,"year":42,"session":41},"nurse-106-2-basic-medicine-016","下列何者屬於邊緣系統？",16,{"webId":48,"stem":49,"number":50,"year":51,"session":41},"nurse-107-2-basic-medicine-054","下列何者不是 aspirin 的藥理作用？",54,107,{"webId":53,"stem":54,"number":55,"year":56,"session":11},"nurse-109-1-basic-medicine-018","下列何者不是下視丘的主要功能？",18,109,{"webId":58,"stem":59,"number":60,"year":61,"session":11},"nurse-110-1-basic-medicine-052","高血壓用藥 furosemide 在分類上屬於下列何者？",52,110,"2026-08-06",1787299087501]