TISSUE TRANSGLUTAMINASE IGG/IGA PANEL

Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Grossly hemolyzed or lipemic specimens

Methodology
Enzyme-Linked Immunoassay

Stability
Room Temperature: 8 hours; Refrigerated: 48 hours; Frozen: 14 days

Reference Range
TTG IgA:
   <20 Units:: Negative  
   20-30 Units:   Weak Positive  
   >30 Units:   Moderate to Strong Positive  
TTG IgG:
   <20 Units:   Negative  
   20-30 Units:   Weak Positive  
   >30 Units:   Moderate to Strong Positive  

Performed
Monday-Friday

Turnaround Time1-3 days
Test CodeTTAG
CPT-4 Code (s)
83516 x 2
LOINC Codes
TTG IgA   31017-7  
TTG IgG   32998-7  

Warde
Medical
Laboratory