Find Locations
For hours, walk-ins and appointments.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
| Temperature | Period |
|---|---|
| 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
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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