Test Overview
Test Methodology

Multiplex Flow Immunoassay

Test Usage

Marker of celiac disease associated with gluten-sensitive enteropathy or dermatitis herpetiformis. A positive result indicates the presence of Gliadin IgA antibodies and suggests the possibility of certain gluten sensitive enteropathies such as celiac disease and dermatitis herpetiformis. In treated patients known to express IgA antibodies, gliadin IgA antibody levels represent a better indicator of dietary compliance than gliadin IgG antibody concentrations.

Reference Range *

Negative (0-14 U/mL)

Test Limitations

IgA antibody is more specific but less sensitive than IgG antibody. Since IgA deficiency is relatively common among celiac patients, the combined use of IgA and IgG antibodies is recommended for diagnosis. Results are unreliable in patients with extremely low total IgA values.

Test Details
Days Set Up
M-F
Analytic Time

8 hours

Soft Order Code
GLADA
MiChart Code
IgA Deamidated Gliadin
Synonyms
  • Anti-Gliadin Antibody IgA
  • Celiac Disease Antibody
  • Celiac Disease Antibody, Gliadin IgA
  • Celiac Disease Panel
  • Gluten Sensitivity Antibody, Gliadin IgA
  • Gluten-sensitive Antibody
  • GLDA
  • GLIADIN IGA ANTIBODY BY EIA
  • GLADA
  • Gliadin IgA Antibody
  • Celiac Sprue panel
  • Deamidated Gliadin Peptide IgA
Laboratory
Chemical Pathology
Section
Immunopathology
Specimen Requirements
Collection Instructions

Collect specimen in SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate. Store at 2-8?C up to 7 days. For longer storage freeze at -20?C.

Alternate Specimen
Red top tube.
Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.2 mL serum
Additional Information

Gliadin IgA and IgG Antibodies may be ordered together or separately. If the antibody is not clearly specified, both the IgA and IgG assays will be performed. Please contact the MLabs Client Services Center for additional clinical information regarding Celiac Disease and associated laboratory testing.

Billing
CPT Code
83516
Fee Code
35601
LOINC
16901-1
NY State Approved
No