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The University of Chicago Medicine Laboratories

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Announcements

Specimen Collection and Handling

Transfusion

Forms

 

 

 

 

Mayo Clinic Laboratories

Test Code TTGAB TTG IgA Antibodies (Tissue Transglutaminase)

Additional Codes

N/A

Specimen and Container/Tube

Blood

Red top

Volume

Preferred Volume

4 mL

Specimen Minimum Volume

2 mL

Pediatric Volume

2 mL

Specimen Handling and Transport Instructions

Offsite Collection Instructions

Collect blood from venipuncture.  Fill red top tube and transport to UCMC.  If transport is > 2 hours, refrigeration is required. 

Rejection Criteria

Gross hemolysis

Gross lipemia

Gross icterus

Reference Values

Negative <4.0U/mL
Weak Positive 4-10 U/mL
Positive >10 U/mL
 

Turnaround Time

Day(s) Performed

Monday and Friday

 

Clinical Indications

Celiac Disease

Test Components

Serum

Methodology

Enzyme Immunoassay (EIA)

CPT Codes

83516

Collection Instructions

Offsite Collection Instructions

Collect blood from venipuncture.  Fill red top tube and transport to UCMC.  If transport is > 2 hours, refrigeration is required. 

UCMC Collection Instructions

Collect blood from venipuncture.  Fill red top tube completely and send to the laboratory.

Critical Values

N/A

 

 

 

 

 

LOINC Codes

31283516

Synonyms/Search Keywords

Tissue Transglutaminase

Last Reviewed Date

08/13/2024