Celiac disease diagnostic testing algorithm

DGP: deamidated gliadin peptide; HLA: human leukocyte antigen; Ig: immunoglobulin; TTGA: tissue transglutaminase antibody.

Reprinted by permission from: Macmillan Publishers Ltd: American Journal of Gastroenterology. Rubio-Tapia A, Hill ID, Kelly CP, et al. ACG clinical guidelines: Diagnosis and management of celiac disease. Am J Gastroenterol 2013; 108:656. Copyright © 2013. www.nature.com/ajg.

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