{"nowTime30":1782503116327,"lyBarModerator":null,"metaSearch":{"description":"　　不少中老年人常发现这样一种现象：从沙发上站起来时头晕，起床一瞬间也会头晕，甚至上厕所起身时也会出现头昏、乏力、站立不稳、视力模糊等症状，此时，让人第一时间想到的是血压升高了。然而，美国北卡罗来纳大学的研究发现，不少人在坐下后再猛地站起来时，眼前常会发黑、头脑发晕，这其实是一种病症，医学上称之为“","keywords":"直立性低血压的临床症状_洞医","title":"直立性低血压的临床症状_洞医","channels":null},"identificate":{"id":null,"isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"realName":null,"certifiedStatus":0,"phone":null,"email":null,"hospitalId":null,"departmentId":null,"illName":null,"illId":null,"cardType":0,"cardImg":null,"idCardImg":null,"identityType":0,"stop":0,"departmentName":null,"hospitalName":null},"canEdit":null,"adList":[],"lyBar":{"id":"2012","isDel":0,"createAt":1483430392200,"createBy":"system","createName":"system","updateAt":0,"updateBy":null,"updateName":null,"userId":null,"name":"低血压","type":102,"twoCode":"http://zhao01.com/zly_img/zly_wx.jpg","image":null,"provinceId":null,"cityId":null,"illId":"78919a75bb5f11e6a61c00163e04584d","hospitalId":null,"keyWord":null,"totleTopic":0,"barDesc":null,"discussBarType":null,"metaSearch":"{\"channels\":{\"病友社区\":{\"description\":\"为病友提供:低血压论坛_低血压病友交流平台_病友论坛，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"低血压论坛_低血压病友交流平台_病友论坛\",\"title\":\"低血压论坛_低血压病友交流平台_病友论坛\"},\"治疗\":{\"description\":\"为您提供:低血压的治疗与饮食注意什么_治疗低血压的最好方法等相关信息，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"低血压的治疗与饮食注意什么_治疗低血压的最好方法\",\"title\":\"低血压的治疗与饮食注意什么_治疗低血压的最好方法\"},\"症状\":{\"description\":\"为您提供:低血压症状有哪些症状_低血压的症状是什么等相关信息，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"低血压症状有哪些症状_低血压的症状是什么\",\"title\":\"低血压症状有哪些症状_低血压的症状是什么\"},\"并发症\":{\"description\":\"为您提供:低血压高的危害有哪些_低血压高对身体的影响等相关信息，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"低血压高的危害有哪些_低血压高对身体的影响\",\"title\":\"低血压高的危害有哪些_低血压高对身体的影响\"},\"饮食\":{\"description\":\"为您提供:低血压的饮食注意事项有哪些_低血压吃什么补血最快等相关信息，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"低血压的饮食注意事项有哪些_低血压吃什么补血最快\",\"title\":\"低血压的饮食注意事项有哪些_低血压吃什么补血最快\"},\"病因\":{\"description\":\"为您提供:低血压是怎么引起的_血压低什么原因造成的等相关信息，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"低血压是怎么引起的_血压低什么原因造成的\",\"title\":\"低血压是怎么引起的_血压低什么原因造成的\"},\"病友求助\":{\"description\":\"为您提供:低血压头晕怎么办_低血压头晕恶心怎么办等相关信息，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"低血压头晕怎么办_低血压头晕恶心怎么办\",\"title\":\"低血压头晕怎么办_低血压头晕恶心怎么办\"},\"预防\":{\"description\":\"为您提供:低血压的预防和处理_直立性低血压的预防等相关信息，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"低血压的预防和处理_直立性低血压的预防\",\"title\":\"低血压的预防和处理_直立性低血压的预防\"}},\"description\":\"为您提供:引起低血压的原因_低血压的危害和防治办法_低血压的人吃什么好的最快_低血压病友的治疗经验等相关信息，让病友在便捷的求医路上不花一分冤枉钱。\",\"keywords\":\"引起低血压的原因_低血压的危害和防治办法_低血压的人吃什么好的最快\",\"title\":\"引起低血压的原因_低血压的危害和防治办法_低血压的人吃什么好的最快\"}","adInfo":null},"isLikeThisTopic":null,"lastTopics":[{"id":"1456","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"title":"老年人餐后低血压原因","content":"<p><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 我父亲今年６５岁。他曾多次在饭后出现头晕、迷糊等症状。有几次他还险些摔倒。在他发病时，我们陪他到医院去检查，发现他的血压低。但平时父亲的血压是偏高的。据我们了解，人在饥饿时应该血压低，吃过饭之后应该是能量充足，老年人餐后低血压原因是什么？这种病应该怎样防治？&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　内蒙 王莹&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　王莹女士：&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 在我们的专科门诊中，类似您父亲这样病情的患者并不少见。这种现象在临床上被称为老年人餐后低血压。其实，早在上个世纪七十年代，老年人餐后低血压现象就已经受到广泛的关注。其临床表现是：有的老年人在餐后２小时之内血压会下降２０毫米汞柱以上；有的在餐前高压超过１００毫米汞柱，而餐后２小时之内则下降到９０毫米汞柱以下；有的在餐后２小时之内出现头昏、晕厥、心悸等低血压症状。&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 研究表明：人在进餐后，由于消化食物的需要，人体内的血液会重新分配。大量的血液流入胃肠道，致使心血管系统的血管阻力减小，从而导致人的血压下降。对于年轻人来讲，其血压调节能力强，所以餐后血压下降的幅度小，一般不会出现什么不适的症状。而对于老年人来说，特别是对于患有糖尿病、冠心病和高血压病的老年人来说，因其血压调节能力低，加之他们中的很多人又患有植物神经功能失调症，所以在进餐后，他们的血管收缩能力会下降，血压也就跟着下降，从而产生了一系列的低血压症状。有的在餐后２小时内会发生头晕、晕厥、心绞痛、乏力、恶心、视物模糊或语言不清等。老年人如果有了这种情况而不加注意，很容易造成外伤或导致心脑血管疾病的发作。而当其血压恢复正常后，这些症状也就随之消失了。&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 由于许多疾病可造成老年人头晕、晕厥、乏力等症状。因此老年人餐后低血压所引起的不适症状，极易被当作是其他疾病所致，而被误诊或漏诊。所以老年人进餐后如有上述不适症状应考虑此病的发生，并要注意其餐前、餐后的血压变化，以便及早明确诊断，采取相应的防治措施。那么，防治餐后低血压有哪些措施呢？&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 １．限制进餐量。有餐后低血压症状的老年人可采取少吃多餐的办法进食。这样既能防止餐后低血压的发生，又能保证摄取充足的营养。&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 ２．食物要多样化。经观察发现，单纯吃碳水化合物如米、面、甜食的人易发生餐后低血压。而适当吃一些脂肪含量高的食物，则可减少此病的发生。&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 ３．餐后若出现低血压症状时，应采取平卧位。餐后散步可减少餐后低血压的发生。&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 ４．易发生餐后低血压的老年人，每日应摄入足够量的水分，且不可严格限制盐的摄入量。&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 ５．糖尿病患者在进行药物治疗时，可以配合使用一些&alpha;―糖苷酶抑制剂如拜糖平等，这样有利于预防餐后低血压的发生。&nbsp;</span><br /><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: #ffffff;\">　　 ６．不宜随意服用抑制交感神经作用的药物如心得安、倍他乐克、康心、氨酰心安等。</span></p>","barId":"2012","topicTypeId":null,"topicThemeId":"1036","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":0,"score":0,"partCount":0,"replayCount":0,"publishStatus":0,"publishTime":0,"isCream":null,"canReply":0,"shareUrl":null,"foodCouponVal":0,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":0,"metaSearch":null,"rn":2},{"id":"3202","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"title":"低血压的家庭护理","content":"<p><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　</span></p><p style=\"text-align:center\"><img src=\"http://01luntan.com/ly_img/uimgs/1486357063890.jpg\" title=\"1486357063890.jpg\" alt=\"6d452b9eaaad4cb7a8e91b7d582c2653_th.jpg\"/></p><p><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\"></span><br/></p><p><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　摘 要：本文从低血压的机理、原因以及临床表现等方面阐述了低血压的发生机理，旨在教育人们平时不要忽视血压偏低的症状，从而通过生活习惯与方式、饮食运动及中医调理等方法改善和调整血压偏低的状况。&nbsp;</span><br/><span style=\"color:#ffffff\">中国论文网 http://www.xzbu.com/8/view-4666597.htm</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　关键词：低血压 护理 预防 保健治疗&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　中图分类号：R473 文献标识码：A 文章编号：1672-3791（2013）03（a）-0226-01&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　低血压是指收缩压低于90 mmHg，舒张压低于60 mmHg，并出现眩晕及虚弱症者[1]。老年人由于动脉硬化，血管弹性减低，只有维持较高的收缩压才能保证机体的正常血液供应，故其收缩压小于等于100 mmHg（13.3 kpa）时即为低血压了[2]。本文主要从低血压的机理，原因，临床表现等方面进一步阐述了低血压的发生机理，旨在教育人们平时不要忽视血压偏低的症状，从而通过生活习惯与方式、饮食运动及中医调理等方法改善和调整血压偏低的状况。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　1 低血压发生机理&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　1.1 生理性低血压&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　生理性低血压状态是指部分健康人群中，由于个体差异，其血压测值已达到低血压标准，但无任何自觉症状，经长期随访，除血压偏低外，人体各系统器官无缺血和缺氧等异常。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　1.2 病理性低血压病&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　病理性低血压病又可分为原发性低血压病和继发性低血压病，除血压降低外，常伴有不同程度的症状以及某些疾病。原发性低血压是指人体某一器官或系统的疾病所引起的血压降低，这种低血压可在短期内迅速发生，以致出现虚脱和休克的征象，称为急性低血压。如大出血、急性心肌梗死、严重创伤、感染、过敏等原因所致血压急剧降低，而大多数情况下，低血压为缓慢发生，可逐渐加重，如继发于严重的肺结核、恶性肿瘤、营养不良、恶病质等所致低血压，其防治主要是针对原发病。继发性低血压病发病机制至今未明，多数学者认为可能属于中枢神经细胞张力障碍有关的疾病，由于中枢神经系统的兴奋与抑制过程的平衡失调，血管舒缩中枢的抑制过程加强，血管收缩与舒张动态平衡发生障碍，血管舒张占优势，最终导致动脉血压降低。此外，内分泌功能的失调，使体内某些调节血压的物质排泌失衡，如血管紧张素-肾素-醛固酮系统、儿茶酚胺类等升压物质分泌降低，而缓激肽、组胺、5-羟色胺等舒血管物质增多，也可能参与低血压病的形成。至于遗传因素、年轻时患过某些传染病，慢性扁桃体炎、咽峡炎、营养失调如维生素C、维生素B、维生素B1和维生素B6缺乏，以及气候、地理环境、风俗习惯、职业等等对低血压病的产生也都可能有关。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　2 低血压的危害&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　慢性低血压据统计发病率为4%左右，老年人群中可高达10%。严重的低血压常较慢性无症状性低血压病人更低。可有头晕，头痛，虚弱，嗜睡，视力模糊，甚至晕，此型还伴有各种不同病因的多种临床表现[3]。特发性直立性低血压是患者从卧位到坐位或直立位时，或长时间站立出现血压突然下降超过20 mmHg～40 mmHg（2.6～5.3 kPa）或更多些，心率无改变，并伴有明显症状，这些症状包括：头昏、头晕、视力模糊、乏力、恶心、认识功能障碍、心悸、颈背部疼痛[3]。体位性低血压与多种疾病有关，如多系统萎缩、糖尿病、帕金森氏病、多发性硬化病、更年期障碍、血液透析、手术后遗症、麻醉、降压药、利尿药、催眠药、抗精神抑郁药等，或其他如：久病卧床，体质虚弱的老年人。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　3 家庭护理指导&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　低血压虽然像高血压一样无法根治，不过通过对患者生活方式、生活习惯、饮食习惯，运动、用药等方面给予指导和监督，可以更加有效地预防和控制低血压的发生。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　3.1 掌握关于低血压的相关知识&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　护理人员，医务工作者应该及时提供些相应的低血压健康保健知识，让病人了解自己的目前的身体状况，有利于低血压的控制和治疗。定期地监测血压，教会病人测血压的简单操作。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　3.2 学会控制情绪&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　平时应该多参加些陶冶情操的活动，听些优美的音乐，看些有益身心健康的书籍，电视，杂志等，保持情志舒畅。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　3.3 合理的饮食&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　应给予高营养、易消化和富含维生素的饮食：如伴有红细胞计数过低，血红蛋白不足的贫血症者，宜适当多吃富含蛋白质，铁、铜、叶酸、维生素B12等“造血原料”的食物如大豆、豆腐、红糖，有利于增加心排量，改善大脑的供血量，从而提高血压和消除低血压的不良危险症状。适当补充维生素C、和烟酰胺（维生素PP）等。以荤为主，增加营养，平时宜多吃猪肉，牛奶，猪肝，鸡肉，鸭肉，蛋类，鱼虾，大枣，桂圆肉及绿色蔬菜等营养丰富[4]，常食用养心益血、健脾补脑的食物，如莲子、桂圆、桑葚等果品。对于那些食欲差者，宜适当食用能刺激食欲的食物和调料品，如醋，糖、柠檬汁、胡椒。适当饮用浓茶，有助于提高中枢神经系统的兴奋性，改善血管舒缩中枢功能，有利于提升血压和改善临床症状。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　3.4 中医调理&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　气血亏虚型头晕头痛健忘乏力伴心悸者，面色晃白，头晕目眩，少气懒语，神疲乏力，甚至晕厥，治宜补益气血。选用十全大补丸、人参养荣丸，养血当归精、人参补膏等；肾精不足头晕、精神萎靡、腰膝酸软、失眠健忘、体形消瘦、怕冷者治宜补益肾精，充养脑髓，可选用河车大造丸人参首乌精[5]；心气虚者：心悸，气短、胸闷表现特别明显，方可选独参汤加减。经验方：人参‘莲子各3钱，冰糖一两隔水炖熟，吃莲肉喝汤。脾虚或中气下焰，兼有纳少，腹胀，便溏，气短，乏力者，方可选择补中益气汤；心气阴两虚可见心悸，气短，胸闷等，常用生脉饮，炙甘草汤。除了药物治疗外，可以多食用一些补血补气的食物，如猪肝、阿胶、枸杞、龙眼、红枣等，有条件者也可以服用灵芝。灵芝不但能使血压高的下降，也能使血压低的升高。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　3.5 医疗体育&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　如：医疗体操、保健操、太极拳；等。平时注意保证足够的睡眠，对于体位性体位性低血压者要稍高枕头，醒后应稍停片刻再下床活动从座椅站立起来时也应慢慢而起立。按摩以及理疗等有助于改善心肺功能，提升血压。对于上述治疗无效：且临床症状严重者，应及时就医。&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　参考文献&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　[1] 刘珍才.常见多发病实用指南[M].广州：广州出版社，2004，12.&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　[2] 张继东，高洪春，李长华.心血管病当代中医治疗[M].济南：济南出版社，1996，8.&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　[3] 王全珍，徐晓璐.现代老年护理学[M].北京：人民军医出版社，1999，5.&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　[4] 刘婷英.老年常见病自疗手册[M].北京：蓝天出版社，2003，11.&nbsp;</span><br/><span style=\"font-family: Arial, 宋体; font-size: 14px; line-height: 25.2px; background-color: rgb(255, 255, 255);\">　　[5] 王河.常见病自诊自疗完全手册[M].北京：九州出版社，2004，1.</span></p>","barId":"2012","topicTypeId":null,"topicThemeId":"1035","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":0,"score":0,"partCount":0,"replayCount":0,"publishStatus":0,"publishTime":0,"isCream":null,"canReply":0,"shareUrl":null,"foodCouponVal":0,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":0,"metaSearch":null,"rn":2},{"id":"9095","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"title":"低血压的症状有哪些具体表现    危害有多大","content":"<p style=\"text-indent:32px;line-height:200%\"><br/></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">很多人都只觉得高血压很严重，低血压没事的。殊不知，低血压严重起来对健康的危害有时候不亚于高血压。了解低血压的症状及危害，可以提前地方低血压，那么，低血压的症状有哪些具体表现，危害有多大？</span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"line-height: 200%; text-align: center;\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\"><img src=\"http://01luntan.com/ly_img/uimgs/1512971450588.jpg\" title=\"低血压的症状有哪些具体表现    危害有多大\" alt=\"低血压的症状有哪些具体表现    危害有多大\" width=\"600\" height=\"372\"/></span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\"><br/></span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">1根据病因可分为生理性和病理性低血压</span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\"><span style=\"font-family:宋体\">（</span>1）生理性低血压者除动脉血压低于上述值外，无任何自觉症状。经长期随访，人体各系统器官无缺血和缺氧等异常，也不影响寿命。生理性低血压状态常见于年轻妇女，尤其是体型瘦长者，而经常从事较大运动量的运动和重体体力劳动者也不少见。其低血压的产生常与迷走神经紧张性较高有关。</span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\"font-family:宋体;font-size:16px\">（2）</span><span style=\";font-family:宋体;line-height:200%;font-size:16px\">病理性低血压（低血压病）除动脉血压低于正常外，常伴有全身乏力、头晕、易疲倦、出汗、心悸等症状，当长时间站立或者由卧位（或坐位、蹲位）转为立位时，上述症状更为明显，甚至昏倒</span><span style=\";font-family:宋体;line-height:200%;font-size:16px\">。</span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">2</span><span style=\";font-family:宋体;line-height:200%;font-size:16px\">、</span><span style=\";font-family:宋体;line-height:200%;font-size:16px\">根据起病形式可分为急性和慢性低血压。</span></p><p style=\"text-indent:16px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\"><span style=\"font-family:宋体\">（</span>1）急性低血压是血压由正常水平或较高的水平突然明显下降，常见于体质弱者，主要表现为晕厥与休克两大类临床综合征。 </span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\"><span style=\"font-family:宋体\">（</span>2）慢性低血压可有遗传倾向，也可继发于某些神经性疾病、心血管疾病、慢性营养不良、内分泌功能紊乱、传染性疾病恢复期以及使用某些降压药时，常伴有相应的不适和检查异常。</span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">3</span><span style=\";font-family:宋体;line-height:200%;font-size:16px\">、</span><span style=\";font-family:宋体;line-height:200%;font-size:16px\">低血压常见轻重症状危害</span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\"><span style=\"font-family:宋体\">（</span>1）轻微症状：头晕、头昏、头痛、食欲不振、易疲劳、脸色苍白、消化不良、晕车船等。</span></p><p style=\"line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\">&nbsp;</span></p><p style=\"text-indent:32px;line-height:200%\"><span style=\";font-family:宋体;line-height:200%;font-size:16px\"><span style=\"font-family:宋体\">（</span>2）严重症状：直立性眩晕、四肢厥冷、心悸、呼吸困难、共济失调、发音含糊、甚至晕厥、抽搐、需长期卧床。</span></p><p><br/></p>","barId":"2012","topicTypeId":null,"topicThemeId":"1034","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":0,"score":0,"partCount":0,"replayCount":0,"publishStatus":0,"publishTime":0,"isCream":null,"canReply":0,"shareUrl":null,"foodCouponVal":0,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":0,"metaSearch":null,"rn":2},{"id":"3375","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"title":"低血压怎么办？","content":"<p><span style=\"color: rgb(51, 51, 51); font-family: &#39;Hiragino Sans GB&#39;, Helvetica, &#39;microsoft yahei&#39;, simsun, arial; font-size: 14px; line-height: 32px; background-color: rgb(252, 252, 252);\">起身眼前一黑，缓好长时间，同时气血上涌，什么时候眼前不黑了气血也就平复了；有时上不来气，一直在胸口上堵着；浑身没劲；总是感觉好累；不想吃东西；月例不正常；血压70，没有检查过</span></p>","barId":"2012","topicTypeId":null,"topicThemeId":"1033","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":0,"score":0,"partCount":0,"replayCount":0,"publishStatus":0,"publishTime":0,"isCream":null,"canReply":0,"shareUrl":null,"foodCouponVal":0,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":0,"metaSearch":null,"rn":2},{"id":"3971","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"title":"心血管方面血压方面问题","content":"<h2 style=\"margin: 0px; padding: 0px; font-size: 14px; color: rgb(51, 51, 51); font-family: &#39;Hiragino Sans GB&#39;, Helvetica, &#39;microsoft yahei&#39;, simsun, arial; white-space: normal; font-weight: normal; background-color: rgb(252, 252, 252);\">高烧5天低血压96/42</h2><p><span style=\"color: rgb(51, 51, 51); font-family: &#39;Hiragino Sans GB&#39;, Helvetica, &#39;microsoft yahei&#39;, simsun, arial; font-size: 14px; line-height: 32px; background-color: rgb(252, 252, 252);\">半高烧后头晕迷糊低血压头沉偶尔心脏不舒服</span></p><p><span style=\"color: rgb(51, 51, 51); font-family: &#39;Hiragino Sans GB&#39;, Helvetica, &#39;microsoft yahei&#39;, simsun, arial; font-size: 14px; line-height: 32px; background-color: rgb(252, 252, 252);\">有什么好的建议没有</span></p>","barId":"2012","topicTypeId":null,"topicThemeId":"1032","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":0,"score":0,"partCount":0,"replayCount":0,"publishStatus":0,"publishTime":0,"isCream":null,"canReply":0,"shareUrl":null,"foodCouponVal":0,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":0,"metaSearch":null,"rn":2},{"id":"1659","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"title":"低血压的初期症状有哪些具体表现","content":"<p style=\"text-align: center;\"><img title=\"1486356603354.jpg\" src=\"http://01luntan.com/ly_img/uimgs/1486356603354.jpg\" alt=\"6d452b9eaaad4cb7a8e91b7d582c2653_th.jpg\" /></p>\n<p><span style=\"color: #333333; font-family: 'Microsoft Yahei', 微软雅黑, arial, 宋体, sans-serif; line-height: 28px; text-align: justify; background-color: #ffffff;\">&nbsp; &nbsp; &nbsp; &nbsp;很多人都只觉得高血压很严重，低血压没事的。殊不知，低血压严重起来对健康的危害有时候不亚于高血压。了解低血压的症状及危害，可以提前地方低血压，那么，低血压的症状有哪些具体表现，危害有多大？</span></p>\n<ol class=\"exp-conent-orderlist list-paddingleft-2\" style=\"list-style-type: none;\">\n<li class=\"exp-content-list \">\n<p style=\"margin-top: 0px; margin-bottom: 0px; padding: 0px;\">1、根据病因可分为生理性和病理性低血压</p>\n<p style=\"margin-top: 0px; margin-bottom: 0px; padding: 0px;\">（1）生理性低血压者除动脉血压低于上述值外，无任何自觉症状。经长期随访，人体各系统器官无缺血和缺氧等异常，也不影响寿命。生理性低血压状态常见于年轻妇女，尤其是体型瘦长者，而经常从事较大运动量的运动和重体体力劳动者也不少见。其低血压的产生常与迷走神经紧张性较高有关。</p>\n<p style=\"margin-top: 0px; margin-bottom: 0px; padding: 0px;\">（2）病理性低血压（低血压病）除动脉血压低于正常外，常伴有全身乏力、头晕、易疲倦、出汗、心悸等症状，当长时间站立或者由卧位（或坐位、蹲位）转为立位时，上述症状更为明显，甚至昏倒。</p>\n</li>\n<li class=\"exp-content-list \">\n<p style=\"margin-top: 0px; margin-bottom: 0px; padding: 0px;\">2、根据起病形式可分为急性和慢性低血压。</p>\n<p style=\"margin-top: 0px; margin-bottom: 0px; padding: 0px;\">（1）急性低血压是血压由正常水平或较高的水平突然明显下降，常见于体质弱者，主要表现为晕厥与休克两大类临床综合征。&nbsp;</p>\n<p style=\"margin-top: 0px; margin-bottom: 0px; padding: 0px;\">（2）慢性低血压可有遗传倾向，也可继发于某些神经性疾病、心血管疾病、慢性营养不良、内分泌功能紊乱、传染性疾病恢复期以及使用某些降压药时，常伴有相应的不适和检查异常。</p>\n</li>\n<li class=\"exp-content-list \">\n<p>3、低血压常见轻重症状危害</p>\n</li>\n<li class=\"exp-content-list \">\n<p style=\"margin-top: 0px; margin-bottom: 0px; padding: 0px;\">（1）轻微症状：头晕、头昏、头痛、食欲不振、易疲劳、脸色苍白、消化不良、晕车船等。</p>\n<p style=\"margin-top: 0px; margin-bottom: 0px; padding: 0px;\">（2）严重症状：直立性眩晕、四肢厥冷、心悸、呼吸困难、共济失调、发音含糊、甚至晕厥、抽搐、需长期卧床。</p>\n</li>\n</ol>\n<p>&nbsp;</p>","barId":"2012","topicTypeId":null,"topicThemeId":"1029","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":0,"score":0,"partCount":0,"replayCount":0,"publishStatus":0,"publishTime":0,"isCream":null,"canReply":0,"shareUrl":null,"foodCouponVal":0,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":0,"metaSearch":null,"rn":3},{"id":"2035","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"title":"血压低了怎么办","content":"<p style=\"text-align: center;\"><img title=\"1486355733394.jpg\" src=\"http://01luntan.com/ly_img/uimgs/1486355733394.jpg\" alt=\"6d452b9eaaad4cb7a8e91b7d582c2653_th.jpg\" /></p>\n<p class=\"p_inden\" style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: Arial, simsun; color: #585858; text-indent: 2em; font-size: 14px; line-height: 2; white-space: normal; font-stretch: normal; word-break: break-all; background-color: #ffffff;\">血压测量值低于正常值，也就是低于90/60mmHg以下时，称为低血压。当血压下降的程度低于正常值，且维持一定的时间和状态时，即为低血压状态。血压的高低可以与性别、年龄、体型、服药状况、是否合并其他疾病等有关。如果是仅仅偶测血压低于正常，同时又无任何不适症状，可暂时观察，无需紧张。如果一段时间内血压持续低于正常，同时伴有头晕眼花，乏力等症状，就必须要引起重视了。</p>\n<p class=\"p_inden\" style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: Arial, simsun; color: #585858; text-indent: 2em; font-size: 14px; line-height: 2; white-space: normal; font-stretch: normal; word-break: break-all; background-color: #ffffff;\">首先，要找出自己血压低的原因。1.许多清瘦苗条的年轻女性，有时测血压会低于正常，但又没有头晕等不适症状，可以多锻炼，增强体质，无需治疗。2.还有一些年龄大于70岁的老年人，由于动脉硬化，舒张压往往低于60mmHg,这部分老年人可以根据收缩压的高低适当进行血压调整。3.一些合并冠心病等病人由于服用的药物的影响，如硝酸甘油、美托洛尔等，就需要及时调整药物。4.继发于其他疾病的低血压，如心功能不全、心肌梗死、末梢血管扩张、急性胃肠炎剧烈的呕吐腹泻、大量失血、甲状腺功能低下等。这些情况需要积极治疗原发病。</p>\n<p class=\"p_inden\" style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: Arial, simsun; color: #585858; text-indent: 2em; font-size: 14px; line-height: 2; white-space: normal; font-stretch: normal; word-break: break-all; background-color: #ffffff;\">那么血压低了，到底怎么办？如果是找不到明确的原因，那么，我们就要采取以下一些措施。1.增加食盐的摄入量，每日食盐摄入量可以达到12到15克。这与高血压病人限制盐摄入恰恰相反。2.多喝一些含盐的汤类，增加血容量。3.瘦弱的人可适当增加体重。4.增加营养，多吃一些有利于升高血压的滋补品。如人参、黄芪、生脉饮等。5.多进行体育锻炼，增强机体的调节能力。6.防止晕倒，低血压患者，尤其是老年人，平时注意从卧位或坐位到立位时，动作要缓慢，以防脑缺血而晕倒。6.药物治疗，可选择米多君、管通等。</p>\n<p>&nbsp;</p>","barId":"2012","topicTypeId":null,"topicThemeId":"1028","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":0,"score":0,"partCount":0,"replayCount":0,"publishStatus":0,"publishTime":0,"isCream":null,"canReply":0,"shareUrl":null,"foodCouponVal":0,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":0,"metaSearch":null,"rn":2},{"id":"9091","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"userId":null,"title":"导致低血压的原因有哪些","content":"<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">低血压的致因</span></p>\n<p style=\"line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">&nbsp;</span></p>\n<p style=\"line-height: 200%; text-align: center;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\"><img title=\"低血压的致因\" src=\"http://01luntan.com/ly_img/uimgs/1512970701078.jpg\" alt=\"低血压的致因\" width=\"600\" height=\"372\" /></span></p>\n<p style=\"line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">&nbsp;</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">1</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">、</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">心脏疾病</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">罹患心不全、心肌梗塞、大动脉瓣狭窄症时，都会影响心脏搏出血液的功能，使心脏输送血量减少，以致循环障碍而引起低血压。</span></p>\n<p style=\"line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">&nbsp;</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">2</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">、</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">末稍血管扩张</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\"><span style=\"font-family: 宋体;\">因细菌或毒素侵犯末稍血管，使血管失去收缩功能，导致血管扩张、血压下降，产生循环</span> <span style=\"font-family: 宋体;\">障碍性低血压。</span></span></p>\n<p style=\"line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">&nbsp;</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">3</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">、</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">暂时性大失血</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">因手术、外伤的大量出血，使体内循环的血液量骤减，而引起暂时性低血压。</span></p>\n<p style=\"line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">&nbsp;</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">4</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">、</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">甲状腺机能低下</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">甲状腺机能减弱时，会出现气力减退、身心疲惫、畏寒、皮肤乾燥等现象，而引起内分泌障碍性低血压。</span></p>\n<p style=\"line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">&nbsp;</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">5</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">、</span><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">艾狄逊氏症</span></p>\n<p style=\"text-indent: 32px; line-height: 200%;\"><span style=\";font-family: 宋体; line-height: 200%; font-size: 16px;\">罹患此症会影响副肾皮质荷尔蒙的分泌，使患者出现皮肤变黑、恶心、呕吐及低血压等症状。</span></p>\n<p>&nbsp;</p>","barId":"2012","topicTypeId":null,"topicThemeId":"1026","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":0,"score":0,"partCount":0,"replayCount":0,"publishStatus":0,"publishTime":0,"isCream":null,"canReply":0,"shareUrl":null,"foodCouponVal":0,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":0,"metaSearch":null,"rn":2}],"pageObj":{"list":[],"list4Map":null,"pageBegin":0,"pageSize":5,"pageNumber":0,"totalPage":0,"totalRow":0},"loginUser":null,"replies":[],"forumUserFans":null,"herfList":[],"only":"0","topic":{"id":"4689","isDel":0,"createAt":1486355854702,"createBy":"6aad1b12ea7211e6a61c00163e04584d","createName":"茉莉花","updateAt":0,"updateBy":null,"updateName":null,"userId":"6aad1b12ea7211e6a61c00163e04584d","title":"直立性低血压的临床症状","content":"<p style=\"text-align:center\"><img src=\"http://01luntan.com/ly_img/uimgs/1486356442774.jpg\" title=\"1486356442774.jpg\" alt=\"001tQ5f5gy6VLAv0jjia8&amp;690.jpg\"/></p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\">　　不少中老年人常发现这样一种现象：从沙发上站起来时头晕，起床一瞬间也会头晕，甚至上厕所起身时也会出现头昏、乏力、站立不稳、视力模糊等症状，此时，让人第一时间想到的是血压升高了。然而，美国北卡罗来纳大学的研究发现，不少人在坐下后再猛地站起来时，眼前常会发黑、头脑发晕，这其实是一种病症，医学上称之为“体位性低血压”。</p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\">　　体位性低血压又叫直立性低血压，即在平卧、下蹲后突然站起，收缩压突然下降超过20mmHg，并伴有明显的头晕、视物模糊、乏力、恶心、心悸等。通常情况下，人的体位改变，由平卧转为站立时，受重力影响，血液滞留在腹部及下肢，血压会有所下降，一般收缩压会下降5～10mmHg，但如果患者的自主神经功能紊乱引起血管舒缩调节功能不良，就会导致血压下降得更多，达到甚至超过20mmHg，出现明显的低血压症状。近年的临床研究和流行病学调查发现，体位性低血压与卒中、心肌梗死等密切相关，因而也越来越受到重视。</p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\">　　体位性低血压是老年人和儿童的常见病。据统计，65岁以上老年人体位性低血压者约占15%，而75岁以上的老年人可高达30%-50%。体位性低血压分突发性和继发性两种。突发性多因植物神经功能紊乱，引起直立性小动脉收缩功能失调所致;继发性多见于慢性营养不良或使用降压药、镇静药之后出现。</p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\">　　头晕，神志模糊是直立性低血压常见的临床表现。当出现低血压时，往往在站立时出现头晕、有时伴有轻微头痛、恶心、站立不稳，严重时发生昏厥，在夜间上厕所、清晨起床以及运动时容易出现体位性低血压，从卧位转为立位更加明显。老年人常有颈动脉硬化，在转动头部的时候也会发作，这主要是由于低血压引起脑血流减少所致。</p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\">　<strong>　检查直立性低血压需对比测量患者在仲卧、坐位以及站立时的血压。</strong></p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\">　　如果发现直立性低血压，迅速检查明确是否有心动过速、意识水平的改变、脸色苍白、皮肤湿冷。如果这些体征都存在，则应考虑低血容量性休克。建立大静脉通路，以供补液或血液输注。每15分钟检测患者生命体征一次，并且记出入量。</p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\"><strong>　　病史和体格检查</strong></p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\">　　如果患者没有生命危险，可以询问病史。如是否在站立时经常出现头晕、乏力或晕厥。还要询问与此伴随的症状，特别是疲劳、端坐呼吸、阳瘘、恶心、头痛、腹部或胸部不适及消化道出血。然后询问完整的用药史。</p><p style=\"margin-top: 15px; margin-bottom: 0px; padding: 0px; font-family: 瀹嬩綋, 寰蒋闆呴粦, Arial, Lucida, Verdana, Helvetica, sans-serif; word-wrap: break-word; font-size: 14px; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);\">　　观察患者皮肤的肿胀情况。触摸周围脉搏搏动，听诊心脏和肺脏，最后检测肌张力和患者的步态是否乎稳。</p><p><br/></p>","barId":"2012","topicTypeId":"2","topicThemeId":"1029","readLevel":0,"files":"","clickNoLikeCount":0,"clickLikeCount":0,"clickCount":1350,"score":0,"partCount":0,"replayCount":0,"publishStatus":1,"publishTime":1486355854704,"isCream":0,"canReply":0,"shareUrl":null,"foodCouponVal":1,"emailNotice":0,"permission":0,"zlyShare":0,"status":0,"sort":0,"highlight":0,"highlightEffectTime":0,"digest":0,"digestEffectTime":0,"top":0,"topEffectTime":0,"closed":0,"stamp":0,"icon":0,"bgcolor":null,"fontcolor":null,"favtimes":0,"isAdopt":0,"adoptId":null,"sortDate":1486355854702,"metaSearch":null,"rn":null},"userAllInfo":{"id":null,"isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"username":null,"password":null,"level":0,"nickName":null,"realName":null,"signName":null,"head":null,"phone":null,"mobile":null,"wechat":null,"qq":null,"email":null,"address":null,"identityType":0,"userType":0,"isPhoneBind":0,"status":0,"accountSource":0,"isStrangerMsg":0,"departmentId":null,"departmentName":null,"sex":0,"provinceId":null,"cityId":null,"userLevel":0,"modifyNameCount":0,"forumUser":{"id":"6aad1b12ea7211e6a61c00163e04584d","isDel":0,"createAt":1486168781822,"createBy":"b1a5ca4ddfad11e6a61c00163e04584d","createName":"小海螺","updateAt":0,"updateBy":null,"updateName":null,"username":"茉莉花","password":"888888","level":0,"nickName":"茉莉花","realName":null,"signName":"随遇而安","head":"http://01luntan.com/ly_img/1486169681471.jpg","phone":null,"mobile":null,"wechat":null,"qq":null,"email":null,"address":null,"identityType":1,"userType":2,"isPhoneBind":0,"status":0,"accountSource":0,"isStrangerMsg":0,"departmentId":null,"departmentName":null,"sex":2,"provinceId":"140000","cityId":"140500","userLevel":0,"modifyNameCount":1},"forumUserActiveInfo":{"id":"6ab0cc6bea7211e6a61c00163e04584d","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":1707962474321,"updateBy":"6aad1b12ea7211e6a61c00163e04584d","updateName":"茉莉花","userId":"6aad1b12ea7211e6a61c00163e04584d","topicCount":551,"replayCount":73,"favorteCount":0,"beFavorteCount":0,"creamCount":2,"focusCount":3,"fansCount":0,"integralCount":581,"foodCouponCount":9,"lastLoginTime":0,"lastLoginIp":null,"downloadCount":0,"uploadCount":0},"newPass":null,"focusBar":null,"counter":null,"forumUserIdentificateDto":null},"theme":{"id":"1029","isDel":0,"createAt":0,"createBy":null,"createName":null,"updateAt":0,"updateBy":null,"updateName":null,"topicTypeId":"2","topicTypeName":"治疗","themeName":"症状","barType":"102","schemaName":2,"reward":0},"page":1,"favorties":true,"isSelf":false,"order":"asc"}