A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Tissue Transglutaminase (IgA + IgG)
Test CodeLAB5210672
Quest Code
11073
CPT Codes
86364 (x2)
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic
Methodology
Immunoassay (IA)
Setup Schedule
P.M. Sets up 5 days a week.
Reference Range
Tissue Transglutaminase Antibody, IgG
Tissue Transglutaminase Antibody, IgA
<15.0 U/mL | Antibody not detected |
≥15.0 U/mL | Antibody detected |
Tissue Transglutaminase Antibody, IgA
<15.0 U/mL | Antibody not detected |
≥15.0 U/mL | Antibody detected |
Clinical Significance
Tissue Transglutaminase Antibody, IgA, is useful in diagnosing gluten-sensitive enteropathies, such as Celiac Sprue Disease, and an associated skin condition, dermatitis herpetiformis. The IgG test is useful in patients who are IgA-deficient. The IgG test also provides support for gluten-sensitive enteropathies beyond the IgA test.
Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130