Casandra
Casandra Test Code QD78533Version 1 (DRAFT)
Performing Lab
Tissue Transglutaminase (tTG) Antibodies (IgG, IgA)
Also known as: Celiac Disease, Transglutaminase IgG IgA
Clinical Use
Order TestUse
The tTG IgA antibody is useful in diagnosing gluten-sensitive enteropathies such as Celiac Sprue Disease and associated dermatitis herpetiformis. The IgG test provides diagnostic support for patients who are IgA-deficient or when additional confirmation of gluten-sensitive enteropathy beyond the IgA result is needed. These combined measurements enhance the sensitivity for detecting celiac‐related immune responses.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Immunoassay (Other)
Biomarkers
Tissue Transglutaminase Ab, IgA
ProteinTissue Transglutaminase Ab, IgA • Other • Categorical (e.g., Positive / Negative / Indeterminate)
Tissue Transglutaminase Ab, IgG
ProteinTissue Transglutaminase Ab, IgG • Other • Categorical (e.g., Positive / Negative / Indeterminate)
Result Turnaround Time
3-5 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
1 mL
Minimum Volume
0.5 mL
Container
Transport tube
Causes for Rejection
Gross hemolysis • Grossly lipemic
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 14 days |
| Frozen | 30 days |