Laboratory Test Reference Guide

Laboratory Information

Test Name

Tissue transglutaminase IgA antibodies

Synonyms

coeliac screen
TTG

External Price (excl. GST)

27.77

Specimen Collection

Adult Specimen

Gold or Red tube

Paediatric Specimen

Paediatric Gold or Red tube

Instructions for Referral to Waikato Lab

Aliquot instructions

300uL Serum

Aliquot Transport

Chilled

Test Information

Department

Immunology

Laboratory Turnaround Time

Batched weekly

Method

Bioflash (CLIA)

Unit of measurement

CU

Reference interval

< 20 CU

Uncertainty of measurement

<20%

Additional Information

Tissue Transglutaminase IgA and Gliadin IgG are both tested for coeliac screen requests.

Endomysial antibodies are added for first time positive TTGA results.