Antigliadin Abs, IgA

Test ID: 

704711

CPT code:

83516

Synonyms:

DGP, IgA

Clinical Use:

Detection of gliadin antibodies aids in the diagnosis and monitoring of certain gluten-sensitive enteropathies, such as celiac disease and dermatitis herpetiformis

Test Information:

A negative IgA result in an untreated patient does not rule out gluten-sensitive enteropathies, especially when associated with IgG gliadin antibodies. This can be explained by selective IgA deficiency, a relatively frequent finding in celiac disease. False-positives are possible as other gastrointestinal disorders are known to induce circulating antigliadin antibody, mainly Crohn disease, food protein intolerance, and postinfection malabsorption.

Specimen Type:

Serum

Requested Volume: 

1 mL

Minimum Volume: 

0.5 mL

Container Type: 

Red-top tube or gel-barrier tube

Collection:

Specimen should be free of bacterial contamination, hemolysis, and lipemia.

Storage Instructions:

Room Temperature:

Stability Requirements:

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3

Rejection Criteria

Hemolysis; lipemia; gross bacterial contamination

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