Celiac Disease HLA DQ Association
Order Name
CELIAC HLA
Test Number: 5194335
Revision Date 12/12/2022
Test Number: 5194335
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Celiac Disease HLA DQ Association
|
Polymerase Chain Reaction |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 7 mL mL (3 mL) | EDTA Whole Blood | EDTA (Lavender Top) | |
| Alternate 1 | See Instructions | Buccal swab | See Instructions | See Instructions |
| Instructions | Notes: 3 mL or four buccal swabs Specimen Type: Lavender-top (EDTA) tube or four buccal swabs in a sealed envelope (buccal swab kit). If submitting buccal swabs, please use the kit provided by LabCorp. To obtain the buccal swab kit or to discuss other specimen types, please telephone 800-533-1037. Specimen Storage: Maintain specimen at room temperature. Protect from extreme heat or cold. Specimen Collection: Not Available Special Instructions: If you have questions, please telephone HLA customer service at 800-533-1037 for assistance in selecting the appropriate HLA test for the patient. Specimen Stability: Ambient: Not Available, Refrigerated : Not Available, Frozen: Not Available |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 3-7 Days |
| Clinical Use | Aids in the diagnosis of celiac disease. The HLA DQ Association test provides genotyping for detection of HLA-DQ2 (DQA1*05:01 or 05:05 and DQB1*02:01 or 02:02) and HLA-DQ8 (DQB1*03:02). Patients with DQ2, half DQ2 and/or DQ8 are predisposed to celiac disease. A negative result essentially rules out celiac disease. In addition to DQ2 and DQ8 status, the report also includes complete DQA and DQB genotypes, homozygosity for DQB1*02, and genetic risk assessment. |
| Performing Labcorp Test Code | 167082 |
| Notes | Labcorp Test Code: 167082 |
| CPT Code(s) | 81377x2 |
| Lab Section | Reference Lab |