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Tissue Transglutaminase Antibody, IgG

Item Value
Approval req'd? No
Available Stat? No
Test code TTGTGG
Performed by Immunology
In House Availability Performed Friday day shift
Method Chemiluminescent
Collection Instructions Avoid hemolysis
Container type Gold top
Amount to Collect 2 mL blood
Sample type Serum
Preferred volume 1 mL serum
Min. Volume 0.5 mL serum
UCSF Rejection Criteria Gross Hemolyzed, lipemic or icteric samples
Processing notes Freeze serum at -20C
Units Chemiluminescent Units (CU)
Normal range
Negative < 20.0 CU
Weak Positive 20.0-30.0 CU
Positive > 30.0 CU
Synonyms Celiac disease; endomysial antibody
Turn around times 2-8 days
Additional information This test may be useful in providing serologic support for a diagnosis of gluten-sensitive enteropathy (found in celiac disease and dermatitis herpetiformis). Results in the weak positive range are considered equivocal and may be repeated, if clinically indicated.
CPT coding 83520
Last Updated 2/20/2015 8:27 AM
Entry Number 1448
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