There are some new ways to help test for Celiac Disease and
gluten-sensitivity that may make diagnoses easier. If you have Celiac
you may go get a traditional blood test though they are not always
accurate and could give a false reading. A biopsy is the truest way to
test for Celiac though some find the procedure too much of a hassle to
A saliva test can also help test for Celiac or gluten sensitivity though the tests can also be unreliable. Additionally, these tests look at the genes for Celiac and only determine if you may develop the disease rather than if you actually have it. Finally, a stool test could be used to diagnose Celiac Disease, though the effectiveness is still under review.
If you suspect you have Celiac Disease, consult with your doctor to determine the best way to get tested. Remember that you shouldn't begin a gluten-free diet until after the test since you must be consuming gluten for results to be more accurate.
Read more: http://www.celiac.com/articles/22565/1/New-Laboratory-Tests-for-those-with-Gluten-Intolerance/Page1.html