Total Complement (Immune)

Every IgA anti-transglutaminase test is accompanied by a total IgA test. Low total IgA levels could interfere with interpretation of the results. If that happens, see the results of the IgG anti-transglutaminase test.To avoid a false negative that would prevent diagnosis of the disease, it is important to consume gluten (equivalent of 4 slices of bread per day) during the 4 to 6 weeks prior to the test. Unclear results should be repeated on a new sample.