Your colon must be empty for the procedure to be accurate. To prepare for the procedure you will have to restrict your diet for a few days beforehand.

	Two days before test:
	Drink only liquids and eat only nonsugar, nondairy foods for 2 days before the procedure. A liquid diet means fat-free bouillon or broth, gelatin, strained fruit juice, water, plain coffee, plain tea, or diet soda.
	Day before test:
	Consume only clear liquids the day before.
	Do not eat or drink anything after midnight.
	Day of test:
	To make sure your colon is empty, you will be given a laxative or enema before the procedure. Your physician may give you other special instructions.

	see also:		Clear Liquid Diet

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