What does the Celiac Disease Screening Test measure?
This test checks for antibodies that, when present, may indicate celiac disease. These antibodies include:
- Total immunoglobulin A (IgA, included as a test control
- Tissue transglutaminase immunoglobulin A (tTG-IgA)
- Deamidated gliadin peptide immunoglobulin G (DGP-IgG, included only as needed)
When you have celiac disease and ingest gluten, your immune system may react by releasing the antibodies tTG-IgA and DGP-IgG, which cause inflammation and damage to your small intestine. You may have celiac disease if you have these antibodies along with symptoms.
Only a healthcare provider or specialist can confirm celiac disease by reviewing your medical history and symptoms and by performing additional tests if needed.