Yale New Haven Hospital

Department of Laboratory Medicine
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Celiac disease reflexive panel

Lab Section: 



Lab Location: 

Main Lab

Test ID: 




Semi-Quantitative Enzyme-Linked Immunosorbent Assay, Turbidimetric


Monday- Friday


5 days for all tests to be completed

Specimen Requirements: 

Collection: 10.0 mL Blood in a Gold Top Tube.
Pediatric volume: 4 mL.
Unacceptable conditions: Grossly hemolyzed specimens.
Stability: After separation from cells: IgA- Ambient: 48 hours; Refrigerated: 7 days; Frozen: 3 months. Tissue Transgutaminase IgA and IgG, and Deaminated Gliadin Peptide IgA and IgG: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 3 months



Reflex Criteria: If IgA is less than 7 mg/dL, then tTG IgG and Gliadin Peptide IgG will be added. If IgA is greater than or equal to 7 mg/dL, then tTG IgA and Gliadin Peptide IgA will be added. Additional charges apply.

Clinical Indications: Preferred panel for Celiac Disease testing. The finding of Tissue Transglutaminase (tTG) antibodies and/or Deamidated Gliadin Peptide (DGP) antibodies may indicate a diagnosis of celiac disease.

Reference Interval: 

See individual tests for reference ranges.

CPT Code(s): 

00100, 82784

Last Changed: 

12/23/2016 14:53:54

Last Reviewed: 

8/17/2017 12:15:42 PM