{"id":"dgp-iga","name":"Deamidated Gliadin Peptide (DGP) IgA","shortName":"DGP IgA","aliases":["DGP IgA","Deamidated Gliadin Peptide IgA","Deamidated Gliadin IgA","Gliadin Peptide IgA Ab","DGP Antibody IgA","Deamidated Gliadin Antibody IgA","Gliadin Peptide IgA","Deamidated Gliadin Abs, IgA","Gliadin (Deamidated) Antibody, IgA, Serum","Gliadin(Deamidated) Ab, IgA, S","Anti-DGP IgA","DGP-IgA"],"abbreviations":["DGP IgA","DGP-IgA"],"loinc":[{"code":"58709-7","primary":true},{"code":"63453-5","primary":false},{"code":"47393-4","primary":false}],"specimen":"serum","units":[{"ucum":"[arb'U]/mL","display":"U/mL"}],"referenceRanges":[{"population":"Adults","low":0,"high":20,"unit":"[arb'U]/mL","unitDisplay":"U/mL","note":"Mayo Clinic Laboratories ELISA: negative below 20.0 U, weak positive 20.0-30.0 U, positive above 30.0 U; applies to all ages. Units and cutoffs differ by kit. ARUP, for example, uses a different assay that reports 0.00-4.99 FLU (fluorescent light units), which cannot be converted to U. Use the range printed on your own report.","sources":[{"title":"Gliadin (Deamidated) Antibody, IgA, Serum (test DAGL)","url":"https://www.mayocliniclabs.com/test-catalog/overview/89029/gliadin-deamidated-antibody-iga-serum","publisher":"Mayo Clinic Laboratories"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"An antibody test for celiac disease that looks for IgA antibodies to a modified gluten protein. It is usually a second-line test, with tTG-IgA used first.","url":"https://bloodtesttracker.com/markers/dgp-iga","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}