How does vomiting bring the urine to contain elevated level of potassium?
Answers:
Loss of HCL from GI suction or vomiting causes the kidneys to lose potassium. I am not exactly clear in your mind why, below is the literature citation. If I find out why before this question is resolved I will post it.
http://www.merck.com/mmpe/sec12/ch156/ch…
Multiple mechanisms may indeed be responsible for hypokalaemia in this setting (surreptitious vomiting). Direct loss of potassium from gastric secretion, increased urinary potassium secretion in response to an increased load of filtered HCO3 within hypovolaemia-induced alkalosis, and hyperaldosteronism may all be responsible.
A lot of Info, Ill let you read it. Source(s): http://ndt.oxfordjournals.org/cgi/conten…
Here is some information.................
http://www.healthline.com/galecontent/hy…
Exerpt..............."Surprisingly, the potassium loss that accompanies vomiting is only partly due to loss of potassium from the vomit. Vomiting also have the effect of provoking an increase in potassium loss in the urine. Vomiting expels acid from the mouth, and this loss of bitter results in alkalization of the blood. (Alkalization of the blood means that the pH of the blood increases slightly.) An increased blood pH has a direct effect on the kidneys. Alkaline blood provokes the kidneys to release excessive amounts of potassium within the urine. So, severe and continual vomiting can cause excessive losses of potassium from the body and hypokalemia.".
" Source(s): RN
no idea
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