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Test Code 2DIS Human Leukocyte Antigens (HLA)-DR-DQ Disease Association Typing Low Resolution, Blood


Specimen Required


Container/Tube: Yellow top (ACD solution A or B)

Specimen Volume: 6 mL

Collection Instructions: Send whole blood in original tube. Do not aliquot.

Additional Information: Specimen acceptability is based on extracted DNA concentration and not sample age.


Method Name

Polymerase Chain Reaction (PCR)/Next-Generation Sequencing (NGS)

Specimen Type

Whole Blood ACD

Specimen Minimum Volume

3 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole Blood ACD Ambient (preferred)
  Refrigerated 

Reject Due To

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Clinical Information

Human leukocyte antigen (HLA) class II genes (HLA-DRB1, -DRB3/4/5, -DQA1, -DQB1, -DPA1, -DPB1) are a part of the major histocompatibility gene complex that encodes for proteins involved in immune recognition.

 

This assay is designed to provide low-to-medium resolution for HLA class II typing. Low-to-medium resolution defines the typing at first field (antigen or allele group level). This contrasts with high-resolution typing, which defines typing at second field or higher (allele level).

Reference Values

Not applicable

Day(s) Performed

Monday, Thursday

Report Available

7 to 17 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

81375

81376 x3

Forms

If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.