Test Code LAB723 Tissue Transglutaminase (tTG), IgA, Autoantibody, Serum
Performing Laboratory
Barnes-Jewish Hospital Laboratory
Methodology
Multiplex Flow Immunoassay
The Bioplex assay for TTG-IgA simultaneously measures Total IgA. If the Total IgA result indicates IgA deficiency (<7 mg/dL), the IgA result will be credited. A result of IgA Deficient will be reported and generate a reflex add-on order for the TTG-IgG assay.
Literature Reference:
Package insert: BioPlex 2200 Celiac IgA kit. BioRad Laboratories, Inc. 10/2013
Specimen Requirements
Specimen Type: Serum
Container/Tube: Plain red top
Specimen Volume: Full tube
Day(s) Test Set Up
Monday through Sunday
Cut-off time: 1000
Turnaround Time:
STAT: not available
Routine: results available the day of testing
Test Classification and CPT Coding
86364
Reference Values
Negative: <15 U/mL
Positive: >15 U/mL
Literature References:
Package Insert: BioPlex 2200 Celiac IgA kit. BioRad Laboratories, Inc. 10/2013
Specimen Transport Temperature
Ambient
Additional Information
For BJH Laboratory Use Only
Analyte Stability:
See Analyte Stability Chart
Laboratory Processing Instructions:
Test performed in BJH Core Lab. Processed by automated line and aliquot stored refrigerated for batch analysis. Completed specimens are stored refrigerated for 5 days.
LOINC Code Information
Name | LOINC Code |
Tissue Transglutaminase (tTG) Ab, IgA | 32998-7 |