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Hi everyone,

I had a quick question for anyone that has any thought on the subject!! What might affect blood tests for celiac? Would the fact that you had a colonoscopy the same day maybe affect the results? I was wondering, because you know how you cant eat anything the day before a colonoscopy, and then it cleans you out. Would that and the fact i had been fasting possibly affect the test results? Thank you!!!

Tyler

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Celiac.com Sponsor (A8):

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Fasting for one day wouldn't do it.....umm...you could get negative results if you:

  • Weren't on gluten for three months prior to testing.
  • The person who analyzed your results messed up
  • You are IgA deficient......which would make the IgA seem normal even if it isn't

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Yes I agree with what celiac3270 said...fasting for a day would not change the results but what he mentioned would.

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