PTD - 32

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Test Directory - HLA Tissue Type



Clinical Indications

To determine  HLA typing for investigation of PTP and Transfusion Graft Versus Host.

Request Form

Combined Pathology Blood form (Yellow/Black or Blue for GP's) following discussion with or requested by Consultant Haematologists.


Analysed by referral laboratory if specific criteria met. (NBS Bristol)

Specific Criteria

Requested by Consultant or agreed with Consultant Haematologists.

Turnaround Time

Usually within two months


Whole Blood and Serum




As requested by NBS and dependant upon clinical indication. Requestor will be directed on a case by case basis by the laboratory.


Samples should be bled early in the day (Monday to Thursday) and transported to laboratory immediately.

Lab. Handling

Samples should be posted to the Reference Laboratory as soon as possible to reach reference lab within 72 hours of bleeding.

Causes for Rejection

Unlabelled or inadequately / incorrectly filled in sample. Not meeting specific criteria for analysis. Delay in sample reaching laboratory. Underfilled, clotted or haemolysed samples.


  Postage delays combined with testing window (reason for collection criteria)


 A full copy of the report from the reference centre will be provided for the requestor.



Version 1.0 / January 2013