Test Code LAB721 Tissue Transglutaminase Antibody, IgG, Serum
Reporting Title
Tissue Transglutaminase Ab, IgG, S
Methodology
Bio-Flash Chemiluminscent Immunoassay
Useful for: Evaluation of patients with IgA deficiency. Evaluating patients suspected of having celiac disease, including patients with compatible clinical symptoms, patients with atypical symptoms, and patients at increased risk (family history, previous diagnosis with associated disorder), positivity for HLA DQ2 and/or DQ8
Screen test for dermatitis herpetiformis, in conjunction with an endomysial antibody test.
Monitoring response to gluten-free diet in patients with dermatitis herpetiformis and celiac disease.
Performing Laboratory
OhioHealth Laboratory Services- RMH Special Testing
Specimen Requirements
Preferred: Serum
Acceptable: Speckle top and plain red top tubes
Draw blood in gold top tube(s). Spin down and send 1 ml of serum refrigerated.
Note: hemolyzed and/or icteric specimens are not acceptable.
Specimen Stability
Specimen Type |
Temperature |
Time |
Serum |
Refrigerated (preferred) |
7 days |
|
Frozen |
21 days |
Reference Values
Negative: < 20 CU
Weak Positive: 20-30 CU
Positive: >30 CU
Day(s) Performed
Monday - Friday
Specimen Transport Requirements
Refrigerate: OK
Frozen: OK
Test Classification and CPT Coding
86364