Tissue Transglutaminase Antibody, IgA

Sunquest Code:TTGA  
Epic Code:LAB723Epic Name:Tissue Transglutaminase Antibody IGA
Synonyms:TTG Antibody, IgA; Celiac Disease; Coeliac Disase, Malabsorption
Methodology:FEIA (by ImmunoCAP)
Turnaround Time:Performed two times a week; results are reported within 4 days.

Collection Instructions

Optimal Volume:1 mL
Minimum\Peds Volume:0.6 mL
Container:Red or gold (gel) (Purple (EDTA), Red (no gel))
Causes for Rejection:Hemolyzed, lipemic or microbially contaminated specimens. Samples not separated from cells within 2 hours of collection.

Processing and Shipping

Specimen Processing:Within 2 hours of collection, centrifuge and aliquot 0.5 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Endocrine  (UMMC-East Bank)


Reference Range:

Less than 7.0 U/mL


7.0-10.0 U/mL


Greater than 10.0 U/mL




Use:Autoantigen of interest in celiac disease. See Tissue Transglutaminase Antibodies, IgA and IgG.

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