Laboratory Test Information Guide

Details for HLA DR/DQ Typing

Test Name: HLA DR/DQ Typing
Alternate Name(s): HLA Class II Tissue Typing
Laboratory: Transplant (UH)
Specimen Type: 2 x 4 mL Lavender (EDTA) top Vacutainer tubes except for potential bone marrow/stem cell transplant patients or patients being investigated for HLA matched platelets. For these patients 4 x 4mL Lavender (EDTA) top tubes are required.

Increase collection volumes if leukocyte count is low.

Smaller volumes apply for pediatric patients.
1 x 4 mL Lavender EDTA top Vacutainer tube
Increase collection volumes if leukocyte count is low.

Contact the laboratory if these volumes are not possible (519-663-3320)
Collection Information: Samples that are being shipped into the laboratory should be drawn and shipped on Mondays, Tuesdays and Wednesdays only.

Draw samples prior to treatment if chemotherapy is being considered.
Requisition: Transplant Immunology Including HLA Antigens
Test Schedule: Monday to Friday
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
7-21 days
Stat
Same day if the sample is received in the Transplant Laboratory before 0830, M-F except Stats
 
Reference Range: See report
Effective Date: 2006-07-07
Revised Date: 2012-10-31
Critical Value: N/A
Interpretive Comments: The report will list the Class II HLA antigens and/or alleles identified for the patient.
Special Processing:  
Comments: Bone Marrow / Stem Cell donors- include the recipientís name, relationship, physician and transplant centre. Testing is only performed for patients involved in the London Transplant Program. Unrelated marrow / stem cell donors are not normally tested in this laboratory. Please contact the laboratory (519-663-3320) if other situations apply to your patient.

Disease Association HLA typings- Indicate the disease under investigation and the antigen of interest. This test is only appropriate for diseases associated with HLA DR/DQ or Class II antigens. See HLA ABC Tissue Typing for diseases associated with HLA ABC or Class I antigens.
Method of Analysis: PCR-SSP
Critical Information Required: Indicate on the requisition if there is a specific antigen or disease of interest i.e. query DQ 0602 / Narcolepsy.

Family investigations (i.e. bone marrow/HSC transplant) must include the identity of the potential recipient and the relation of all potential donors.
Storage & Shipment: Keep blood at room temperature and deliver within 72 hours.
System Codes: 
Cerner
N/A
 
Referred To:  

Questions? Comments? Contact Laura Gopaul