Keyword: follow-up

In follow-up blood testing, why would tTG be negative and DGP be positive?

If the slightly positive test is the DGP-IgA, you can disregard this value, as it can be misleading. If the DGP-IgG is positive it probably means you’re ingesting small amounts of gluten, possibly from cross-contamination, which are raising antibodies but not enough to trigger a tTG or a mucosal response. Basically, in either case you… Read more »

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How often should follow-up testing occur?

New celiacs should receive follow-up testing twice in the first year after their diagnosis. The first appointment should occur 3-6 months after the diagnosis, and the second should occur after 1 year on a gluten-free diet. After that, a celiac should receive follow-up testing on a yearly basis. We recommend checking both tTG and DGP… Read more »

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