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Laboratory Test Reference Guide

Laboratory Information

Test Name

HLA DQ2/DQ8

Synonyms

Coeliac gene testing
DQ2
DQ8

External Price (excl. GST)

Price

$52.16

Specimen Collection

Specimen Collection and Transport Protocols

Molecular samples must be dedicated tube i.e. do not share with haematology

Adult Specimen

Purple (EDTA) tube

Paediatric Specimen

Paediatric Purple (EDTA) tube

Instructions for Referral to Waikato Lab

Aliquot Instructions

1mL Whole blood

Aliquot Transport

Chilled

Test Information

Department

Molecular Biology

Laboratory Turnaround Time

Batched fortnightly

Method

PCR

Unit Of Measurement

NOT detected / DETECTED

Additional Information

Coeliac disease is associated with HLA DQ2 and/or HLA DQ8. The presence of at least one of these alleles means that coeliac disease cannot be excluded. However only a minority of people with these alleles have coeliac disease. 
If HLA-DQ2 and DQ8 are not detected, Coeliac disease is highly unlikely. In <1% of cases, coeliac disease may occur in the absence of the alleles tested. (Dr Marianne Empson, Immunopathologist)

Alleles detected by this PCR: HLA-DQB*02 and HLA-DQB*03:02