HLA Class II DR, DQ Typing (Sendout)

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General Information

Lab Name
HLA Class II DR,DQ Typing (Sendout)
Lab Code
RH2DRQ
Epic Name
HLA Class II DR,DQ Typing (Sendout)
External Test Id
3084-01
Description

Test Information: This test uses molecular typing methods to identify alleles of the DRB1 and DQB1 genes and the presence of the DRB3, DRB4 and DRB5 genes. Assignment is at the low resolution level.

Forms & Requisitions
Synonyms
3084-01
Components
Code Name
R1DRB1 DRB1 (Allele 1)
R2DRB1 DRB1 (Allele 2)
RDR345 DRB345 (Allele 1)
R2D345 DRB345 (Allele 2)
R1DQB1 DQB1 (Allele 1)
R2DQB1 DQB1 (Allele 2)
R1DQA1 DQA1 (Allele 1)
R2DQA1 DQA1 (Allele 2)
R1DPB1 DPB1 (Allele 1)
R2DPB1 DPB1 (Allele 2)
R1DPA1 DPA1 (Allele 1)
R2DPA1 DPA1 (Allele 2)

Interpretation

Method

Molecular

Reference Range
See individual components

Ordering & Collection

Specimen Type
Blood
Collection

10 mL blood in YELLOW TOP (ACD) tube

Forms & Requisitions
Handling Instructions

Outside Laboratories:

  • Store and transport whole blood at ambient temperature.
  • A completed Bloodworks Northwest Immunogenetics/HLA Requisition must accompany all orders. In the Billing section, indicate "Bill to UWMC DLMP."

Stability: Ambient.

Quantity
Requested: 10 mL whole blood (Yellow ACD)
Minimum: 7 mL whole blood (Yellow ACD)

Processing

Receiving Instructions

Store and transport samples at ambient temperature.

    Sendouts (UW-MT/HMC) and FHCC SPS:

    • Bloodworks NW HLA Test: 3084-01
    • Interfaced: Yes [Interface: 603; Worksheet: UBWHLA/HBWHLA/FBWHLA or other location-specific worksheet group]
    • Send sample(s) with a copy of the Bloodworks Northwest HLA Requisition or the EPIC requisition (must indicate the test or panel to be ordered at Bloodworks NW).
      • Package sample(s) with the associated requisition in a biohazard bag (one patient per bag). Orders received with multiple patient samples/requisitions in the same biohazard bag will be rejected by Bloodworks NW.
    • Send routine samples via scheduled DLMP Courier pickup or Delivery Express according to the site’s preferred transportation method.
    • STAT orders should be transported to Bloodworks Northwest as received.* Depending on the courier schedule, it may be necessary to individually batch a STAT order and/or call Delivery Express for pickup.
      • *STAT orders for this test are rare and require the provider to request approval from the HLA Lab. If approval is obtained, the HLA Lead Technical Coordinator will contact CSS to request expedited transport of a sample. CSS will create an HC1 task for SPS. If this is not done, orders should be considered routine.

    Stability: Ambient.

    Misc Sendout

    Performance

    Lab Department
    Sendouts BWNW Lab (AB)(BWAB)
    Frequency
    Performed: Monday through Friday. TAT: 7 business days from sample receipt at Bloodworks NW HLA Lab.
    Available STAT?
    No
    Performing Location(s)
    Sendout Bloodworks Northwest Immunogenetics/HLA Laboratory
    206-689-6580

    921 Terry Ave
    6th Floor
    Seattle, WA 98104

    Laboratory staffed for questions: Monday - Friday, 07:00 a.m. to 05:00 p.m.
    After-Hours, Holidays, Weekends: Contact the Lead Technical Coordinator at (206) 817-7730
    Fax: 206-689-6582

    Billing & Coding

    CPT Codes
    81375
    LOINC
    21343-9