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Test Code DGLDN Gliadin (Deamidated) Antibodies Evaluation, IgG and IgA, Serum

Reporting Name

Gliadin (Deamidated) Ab, Eval, S

Useful For

Evaluating patients suspected of having celiac disease; this includes patients with symptoms compatible with celiac disease, patients with atypical symptoms, and individuals at increased risk of celiac disease

 

Evaluating the response to treatment with a gluten-free diet

Profile Information

Test ID Reporting Name Available Separately Always Performed
DAGL Gliadin(Deamidated) Ab, IgA, S Yes Yes
DGGL Gliadin(Deamidated) Ab, IgG, S Yes Yes

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Advisory Information


Cascade testing is recommended for celiac disease. Cascade testing ensures that testing proceeds in an algorithmic fashion. The following cascades are available; select the appropriate one for your specific patient situation.

-CDCOM / Celiac Disease Comprehensive Cascade: complete testing including HLA DQ

-CDSP / Celiac Disease Serology Cascade: complete testing excluding HLA DQ

-CDGF / Celiac Disease Gluten-Free Cascade: for patients already adhering to a gluten-free diet

To order individual tests, see Celiac Disease Diagnostic Testing Algorithm in Special Instructions.



Specimen Required


Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL


Specimen Minimum Volume

0.4 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 21 days
  Frozen  21 days

Reference Values

Negative: <20.0 U

Weak positive: 20.0-30.0 U

Positive: >30.0 U

Reference values apply to all ages.

Day(s) and Time(s) Performed

Monday through Saturday; 4 p.m.

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

83516 x 2

LOINC Code Information

Test ID Test Order Name Order LOINC Value
DGLDN Gliadin (Deamidated) Ab, Eval, S 57776-7

 

Result ID Test Result Name Result LOINC Value
DAGL Gliadin(Deamidated) Ab, IgA, S 47393-4
DGGL Gliadin(Deamidated) Ab, IgG, S 47394-2

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus OK

Method Name

Enzyme-Linked Immunosorbent Assay (ELISA)

Forms

If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Client Test Request (T728) with the specimen.

Secondary ID

89031