[問題] GI loss造成hypokalemia的機轉

作者: haowei1003 (haowei)   2014-06-25 21:38:34
各位學長姐大家好 希望大家不吝指導
針對GI loss造成的低血鉀
uptodate的解釋是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沒有錯誤
GI loss H+
作者: hahawow (哇哈哈)   2014-06-26 11:15:00
食鹽水抽掉HCl就剩下NaOH,NaOH太鹼性一定會和CO2反應,結果就是變成NaHCO3...當然過程中[OH-]濃度不會超過10^-6否則組織都被溶解掉了...如果想留下[K]+[HCO3]就只能少吃NaCl多吃KCl囉 XD

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