ARUP's Laboratory Test Directory

0051689: Celiac Disease Dual Antigen Screen

Test Mnemonic: TTG DGP
Methodology: Enzyme Linked Immunosorbent Assay

Performed: Mon

Reported: 1-8 days

Specimen Required:  
Collect: One 4 mL SST.

Transport: 1 mL serum at 2-8°C. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport: 0.15 mL serum at 2-8°C.

Unacceptable Conditions: Plasma, other body fluids. Hemolyzed, icteric, heat-inactivated, lipemic, or contaminated specimens.

Stability: After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year

Reference Interval:
19 Units or less: Negative - No significant level of detectable IgA or IgG antibodies against human tissue transglutaminase or gliadin peptide.

20 Units or greater: Positive - Presence of IgA and/or IgG antibodies against human tissue transglutaminase and/or gliadin peptide; suggests possibility of certain gluten sensitive enteropathies such as celiac disease and dermatitis herpetiformis.

Note:
This test is a combined antibody screen for tissue transglutaminase and deamidated gliadin-derived peptide antibodies, IgA and/or IgG.

CPT Code(s):
83516

 

 

 
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