HLA DQA1 and DQB1 Intermediate Resolution

TEST: 167684
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CPT: 81376(x2)
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Special Instructions

If you have questions, please call HLA customer service at 800-533-1037 or email at [email protected].

Specimen Requirements

Specimen

Whole blood or buccal swabs

Volume

One adult tube or four buccal swabs

Minimum Volume

One pediatric tube or two buccal swabs

Container

Lavender-top (EDTA) tube or four buccal swabs in a sealed envelope (buccal swab kit). If submitting buccal swabs, please use kit provided by Labcorp. To obtain the buccal swab kit or to discuss other specimen types, please call 800-533-1037 or email [email protected].

 

Storage Instructions

Maintain specimen at room temperature. Do not refrigerate or freeze.

Stability Requirements

TemperaturePeriod
Room temperature

Whole blood: 1 week

Buccal swabs: >2 years

Causes for Rejection

Improper collection tube; mislabeled specimen

Test Details

Use

DQA1 and DQB1 antigens may be correlated with certain disease states or other clinical conditions. This test is not to be used for celiac or narcolepsy testing. Please order the appropriate tests for those indications.

Limitations

Even with appropriate precautions, an occasional specimen may not be satisfactory for testing, In such cases, fresh specimens should be collected for retesting.

This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.

Methodology

Next-generation sequencing (NGS), Illumina

For Providers

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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf