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Tissue Transglutaminase Ab, IgG
Test CodeTTGG
Alias/See Also
Tissue Transglutaminase (tTG) Antibody (IgG)
Quest Code
11070
Quest Code
11070
CPT Codes
83516
Preferred Specimen
1 mL serum collected in a serum separator tube (SST)
Minimum Volume
0.5 mL
Other Acceptable Specimens
1 mL serum collected in a no additive (red-top) tube, transferred to a plastic screw-cap vial
Instructions
Centrifuge serum specimens within 1 hour of collection.
Transport Temperature
Refrigerated
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Lipemia
Microbially contaminated serum
Specimens containing heavy visible particles
Lipemia
Microbially contaminated serum
Specimens containing heavy visible particles
Methodology
Immunoassay
Setup Schedule
Tuesday-Saturday a.m.
Report Available
Next day
Clinical Significance
Tissue Transglutaminase Antibody, IgG, is useful in diagnosing gluten-sensitive enteropathies, such as Celiac Sprue Disease, and an associated skin condition, dermatitis herpetiformis in patients who are IgA-deficient.
Performing Laboratory
Quest Diagnostics Nichols Institute
Chantilly, VA
Performing Laboratory
Quest Diagnostics Nichols Institute
Chantilly, VA
