Prepping for a colonoscopy is unpleasant, but the bowel needs to
be clear for the procedure to be effective. Split dosing
and some new liquids may make the bowel cleansing needed for
colonoscopy a bit easier and perhaps more palatable. A variety of
flavorings (cherry, citrus-berry, lemon-lime, pineapple) are on
today's bowel prep menu, as are solutions without sodium sulfate,
which produces a rotten-egg flavor. There are also combination
approaches that start with laxative pills and then finish the job
with two liters of solution, instead of the usual four liters (a
liquid liter is just a little more than a liquid quart).
Meanwhile, colonoscopy guidelines were revised in 2008 to
recommend a so-called split dosing strategy: about half of the
liquid prep the day before the examination and the other half the
day it's scheduled, instead of all of it the day before.
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