HLA - DQ & DR Loci Typing by Histospot

What does HLA DQ DR typing test for?

HLA DQ and DR loci typing is a genetic test that identifies specific variations in the human leukocyte antigen (HLA) system. These loci are associated with immune function and are especially relevant in organ transplantation compatibility, autoimmune disorders like celiac disease and type 1 diabetes, and certain drug hypersensitivities.


Why is HLA typing important?

HLA typing helps determine if a donor and recipient are immunologically compatible for organ or stem cell transplantation. In autoimmune conditions, specific HLA types like HLA-DQ2 or DQ8 are linked to disease susceptibility and aid in diagnosis.


How is the test performed?

A blood sample is collected and DNA is extracted for molecular analysis. PCR-based techniques or next-generation sequencing are used to identify specific alleles at the DQ and DR loci.


Is any preparation needed?

No fasting or special preparation is required. Inform your physician about any recent blood transfusions or stem cell treatments, as these can influence the test results.


When can I expect the results?

HLA typing results typically take 7 to 10 working days. Your healthcare provider will use this information for diagnostic purposes or transplant evaluation.