Skip Ribbon Commands
Skip to main content
Sign In
Navigate Up

23233 Tissue Transglutaminase AB, IgA and IgG

Tissue Transglutaminase AB, IgA and IgG
Test Code: TTGAB
Synonyms/Keywords
tTG Ab, celiac disease, sprue​
Useful For
Tissue Transglutaminase antibodies are useful in the diagnosis of gluten-sensitive enteropathy (Celiac disease). The tTG-IgG assay may aid in the diagnosis of gluten sensitive enteropathy in tTG-IgA negative patients with confirmed IgA deficiency. A negative Tissue Transglutaminase antibody test alone does not rule out gluten-sensitive enteropathy.​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Serum​ Red Top Tube (RTT) or Serum Separator Tube (SST)​ ​ 1.0 mL​ 1.0 mL​ 0.5 mL​
Collection Processing Instructions

​Separate serum from cells within 2 hours of collection.

Specimen Stability Information
Specimen Type Temperature Time
Serum​ Refrigerate​ 7 days​
Frozen > 7 days​
Rejection Criteria
Gross lipemia
Gross hemolysis
Heat inactivated samples​
​Gross icterus
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 1 day​ Mulitplex Flow Immunoassay -BioRad Bioplex 2200
Reference Range Information
Performing Location Reference Range
 Marshfield​ ​
IgG:
< 15.0 U/mL: Negative
IgA:
< 15.0 U/mL: Negative
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
86364 ​ 2​ tTG IgG and tTG IgA​ ​
Synonyms/Keywords
tTG Ab, celiac disease, sprue​
Ordering Applications
Ordering Application Description
​Cerner ​Tissue Transglutaminase Antibody IgA and IgG
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Serum​ Red Top Tube (RTT) or Serum Separator Tube (SST)​ ​ 1.0 mL​ 1.0 mL​ 0.5 mL​
Collection Processing

​Separate serum from cells within 2 hours of collection.

Specimen Stability Information
Specimen Type Temperature Time
Serum​ Refrigerate​ 7 days​
Frozen > 7 days​
Rejection Criteria
Gross lipemia
Gross hemolysis
Heat inactivated samples​
​Gross icterus
Useful For
Tissue Transglutaminase antibodies are useful in the diagnosis of gluten-sensitive enteropathy (Celiac disease). The tTG-IgG assay may aid in the diagnosis of gluten sensitive enteropathy in tTG-IgA negative patients with confirmed IgA deficiency. A negative Tissue Transglutaminase antibody test alone does not rule out gluten-sensitive enteropathy.​
Reference Range Information
Performing Location Reference Range
 Marshfield​ ​
IgG:
< 15.0 U/mL: Negative
IgA:
< 15.0 U/mL: Negative
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 1 day​ Mulitplex Flow Immunoassay -BioRad Bioplex 2200
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
86364 ​ 2​ tTG IgG and tTG IgA​ ​
For most current information refer to the Marshfield Laboratory online reference manual.