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Lab Manual for Moffitt-Long and Mount Zion

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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 EIA
Container type Gold top
Amount to Collect 1 mL blood
Sample type Serum
Preferred volume 0.5 mL serum
Min. Volume 0.3 mL serum
Processing notes Freeze serum at -20C
Units Units
Normal range Negative < 20.0 Units

See Additional information
Synonyms Celiac disease; endomysial antibody
Additional information Interpretation of results:
Negative < 20.0 Units
Weak positive 20.0-30.0 Units
Moderate to strong positive > 30.0 Units


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 5/22/2013 1:23:53 PM
Entry Number 1448

If you have additional questions regarding this test, please call: 415-353-1667

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