Find Locations
For hours, walk-ins and appointments.Special Instructions
Indicate in clinical information which antigen(s) is of interest. If you have questions, please call 800-533-1037 (HLA customer service) for assistance in selecting the proper HLA test for the patient.
Expected Turnaround Time
3 - 7 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Documents
Specimen Requirements
Specimen
Whole blood
Volume
7 mL
Minimum Volume
3 mL
Container
Lavender-top (EDTA) tube
Storage Instructions
Maintain specimen at room temperature; protect from extreme heat or cold. Do not freeze.
Causes for Rejection
Hemolyzed specimen; clotted specimen; wrong specimen container
Test Details
Use
DQA1 antigens may be correlated with certain disease states or other clinical conditions. Also used for screening of transplant candidates and potential donors, transfusion of specifically compatible blood products, among others. This test is for single locus typing at high resolution.
Methodology
Sequence based typing (SBT), sequence specific oligonucleotide probes (SSOP), and/or sequence specific primers (SSP) as needed to obtain the required resolution.
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 167297 | HLA DQA1 (HR) | 168001 | DQA1 Allele 1 | 59019-0 | ||
| 167297 | HLA DQA1 (HR) | 168019 | DQA1 Allele 2 | 59019-0 | ||
| 167297 | HLA DQA1 (HR) | 167384 | HLA Methodology | 49549-9 |
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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