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Can You Have False Positive Blood Tests?

bhenry

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bhenry Newbie
bhenry
Posted

My 4 year old daughter has celiac. I am in the process of blood testing my other children. So far 2 more have tested positive with the blood tests. I took them for their blood tests right after eating breakfast. Could eating affect the results of the blood tests and give them a false positive?

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jerseyangel Proficient
jerseyangel
Posted
My 4 year old daughter has celiac. I am in the process of blood testing my other children. So far 2 more have tested positive with the blood tests. I took them for their blood tests right after eating breakfast. Could eating affect the results of the blood tests and give them a false positive?

Hi and welcome :)

No, eating before having blood drawn for the Celiac panel won't affect the outcome of the test. Fasting is not necessary.

Tim-n-VA Contributor
Tim-n-VA
Posted

There are some conditions that will cause a false positive but they are rare. Eating gluten will not cause a false positive because the tests are measuring the bodies reaction to the gluten, not anything directly related to gluten in the body.

Lisa16 Collaborator
Lisa16
Posted

Hi Bhenry!

If the blood work is positive, you must consider your children are celiacs. I see a great deal of gluten free food in your immediate future! You will learn a great deal by reading things on the forum.

If you can actually post the results here (just give the numbers,) people on this forum can explain to you what they mean a bit more specifically. Certain parts of the panel are more specific than others.

bhenry Newbie
bhenry
Posted
  • Author

Thanks for all your input. I appreciate the help.

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