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高血压患者服药不合适可导致低血压
发布时间:2011-06-07      来源:
    核心提示: 大家都知道高血压不好,殊不知,低血压也会侵蚀健康。低血压病人也可能诱发中风、心肌梗死等。因此,长期血压偏低者应尽快找到引起血压偏低的原因,继发性低血压病人要及时治疗基础疾病,由降压药副作用引起的则要根据医生建议接受合适的药物治疗。 

  3%-5%的低血压无明显症状

  低血压主要分为急性低血压与慢性低血压,通常急性低血压患者由于短时间内血压突然下降出现头痛、头晕,严重者会呼吸困难、四肢发冷、心悸,甚至昏厥、休克,会诱发消化道大出血、中风、心肌梗死等重症疾病,危及生命安全。

  慢性低血压则主要包括生理性低血压症状、继发性低血压和体质低血压,3%-5%的人血压值低于正常水平却没有明显症状,只要长期随访,没有出现器官缺血或缺氧等症状则无大碍;由原发性疾病引起的低血压很常见,患者症状与急性低血压相似,长期如此会引起视力、听力下降、精神萎靡、健忘、乏力、心情抑郁等,导致基础疾病病情加重,影响患者生活质量。体质低血压一般是体质比较虚弱、身体瘦弱的人会得。

  吃降压药也可能引起低血压

  高血压病人服用不合适的降压药物所引起的副作用也会导致低血压。“吃降压药本身就会扩张血管,有些老年人动脉血管硬化,自身调节能力较差,如果药剂过猛或者药物副作用都会引起血压降得过快,诱发低血压,严重者甚至出现休克、有生命危险。”他建议,高血压病人服药期间一定要坚持自测血压,一旦出现头晕、头痛等不适症状一定要及时就诊。

  体质低血压可补充营养控血压

  中医认为低血压与阳气不足有关,因此需提升阳气、益气温阳、健脾补肾。一般来说,无症状的生理性低血压患者要定期随访,及时监测血压,查查是否存在器官缺血或缺氧的情况;体质低血压患者可以通过加强体育锻炼和补充营养控制血压,多吃山药、枸杞、核桃、红枣、富含维生素和微量元素的水果蔬菜以及含蛋白质丰富的食物,多喝原生态的蜂蜜,充足的睡眠和开朗乐观的性格也是保障;继发性低血压应及时找专科医生治疗,尽早治疗基础疾病,以免延误病情;药物副作用引起的低血压病人则要根据医生建议及时改用合适的药物治疗。

  洗澡、泡温泉要控温控时

  低血压患者洗澡、泡温泉时水温不宜过高,也要尽量缩短时间以免血管扩张造成血压更低;睡觉时可以把枕头适量垫高。老年人起床、活动时最好保持动作缓慢,可以先活动四肢或伸一下懒腰再慢慢起床,以防短暂性大脑缺血;长时间蹲坐后站立前先闭合双眼、颈前屈到最大限度后再慢慢站起来,持续约15秒后再慢慢走动;平时可以喝浓咖啡刺激心脏,加快心跳促进血液循环。

  ●链接

  低于90/60毫米汞柱是低血压

  低血压是指体循环动脉压力低于正常的状态,目前国际上对低血压的诊断尚无统一标准,一般临床认为成人不同日三次在诊所测量的动脉血压或24小时动态血压的高压低于90毫米汞柱或舒张压低于60毫米汞柱即可诊断为低血压。

  “人体就像一辆汽车,动脉就像发动机负责供给人体的血液。如果血压下降就会导致动力不足,造成血液循环缓慢,远程毛细血管缺血,影响氧气和营养的供给,缺血的脏器功能低下则诱发疾病。”李荣说,老年人是低血压的高发人群。

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