ARUP's Laboratory Test Directory

Deamidated Gliadin Peptide (DGP) Antibody, IgA : 0051357

Mnemonic: GLIADPEP A

Ordering Recommendation: Do not use in IgA-deficient individuals; acceptable single screening test for celiac disease. Tissue Transglutaminase (tTG) Antibody, IgA (0097709) test is preferred. IgA testing recommended prior to this test.
Methodology: Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: Serum separator tube.

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transport 0.5 mL serum. (Min: 0.3 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Plasma or other body fluids. Contaminated, hemolyzed, grossly icteric, or grossly lipemic specimens.

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
Reference Interval:
19 Units or less: Negative
20-30 Units: Weak Positive
31 Units or greater: Positive
CPT Code(s): 83516
Cross References: Celiac Disease Antibodies (Deamidated Gliadin Peptide (DGP) Antibody, IgA), Coeliac Disease Antibodies (Deamidated Gliadin Peptide (DGP) Antibody, IgA), Deamidated Gliadin Antibodies (DGP) (Deamidated Gliadin Peptide (DGP) Antibody, IgA)