[quote author=Doubleflash link=topic=23564.msg227063#msg227063 date=1247520915]
I agree that normal saline soulution would not work. NS should be isotonic or hypertonic in most people.
I wonder if something like D5W or diluted Gatoraide would cross into the bloodstream through the bowel?
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What are you talking about "NS should be isotonic or hypertonic in most people?"
NS IS ISOTONIC, that's what "normal saline" means.
D5W and Gatorade will both be absorbed from the colon, but the water in the Gatorade will be absorbed less than from D5W or plain water because Gatorade has various physiologic salts in it.
Really, if you need to re-hydrate, DRINK the water. 100% of it will be absorbed, and much faster than water through the colon, even IF you would hold it until the entire enema was absorbed, which would take a VERY long time.
Using an enema to re-hydrate is only done if the person is unconscious and an IV to properly re-hydrate them is not available.