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Deamidated Gliadin Peptide (DGP) Antibody, IgG
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Ordering Recommendation
Acceptable single screening test for celiac disease. IgA testing recommended to identify IgA deficiency. Use IgG test in individuals who are IgA deficient. May be useful in diagnosing children <2 years who test negative for tTG and EMA antibodies. May aid in monitoring adherence to gluten-free diet. Celiac Disease Reflexive Cascade (2008114) or Tissue Transglutaminase (tTG) Antibody, IgG (0056009) is the preferred test for screening patients with suspected celiac disease.
Mnemonic
Methodology
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed
Sun-Sat
Reported
1-2 days
New York DOH Approval Status
Specimen Required
Serum separator tube.
Separate serum from cells ASAP or within 2 hours of collection. Transport 0.5 mL serum. (Min: 0.3 mL)
Refrigerated.
Plasma or other body fluids. Contaminated, hemolyzed, grossly icteric, or grossly lipemic specimens.
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 |
Interpretive Data
FDA
Note
Hotline History
CPT Codes
86258
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0051359 | Deamidated Gliadin Peptide (DGP) Ab, IgG | 63459-2 |
Aliases
- Celiac Disease Antibodies
- Deamidated Gliadin Antibodies (DGP)
- Deaminated Gliadin Peptide Antibodies
- DGP
- DGP Ab
- DGP IgG
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