[问题] GI loss造成hypokalemia的机转

楼主: haowei1003 (haowei)   2014-06-25 21:38:34
各位学长姐大家好 希望大家不吝指导
针对GI loss造成的低血钾
uptodate的解释是The associated metabolic alkalosis and rise in plasma bicarbonate
concentration increases the filtered bicarbonate load above its reabsorptive
threshold. As a result, more sodium bicarbonate and water are delivered to
the distal potassium secretory site.
所以我的想法如下不知有没有错误
GI loss H+
作者: hahawow (哇哈哈)   2014-06-26 11:15:00
食盐水抽掉HCl就剩下NaOH,NaOH太碱性一定会和CO2反应,结果就是变成NaHCO3...当然过程中[OH-]浓度不会超过10^-6否则组织都被溶解掉了...如果想留下[K]+[HCO3]就只能少吃NaCl多吃KCl囉 XD

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