Human Platelet Antigen (HPA) typing
Blood Transfusion
Notes
- Investigation of Platelet Refractoriness due to HPA
- Requires Consultant Haematologist approval
- Histocompatibility & Immunogenetics Diagnostic Laboratory Form 3D required to request this test (form available from Transfusion laboratory or here)
- This test is performed at NHSBT Filton, Bristol.
Sample Requirements

Required Information
NHSBT state that following points of identification MUST be on request form and sample tubes:
- Forename
- Surname
- Date of birth
- Hospital number and / or NHS number
The sample tube(s) must be signed and dated by the person taking the blood.
NHSBT may decline to test inadequately labelled samples.
Turnaround time
7 working days
Information:
Author: Stuart Lord, Lead Transfusion Practitioner
Reviewed date: 22/04/2025
Next review date: 22/04/2027