crossmatch (including blood group and antibody screen)


crossmatch (including blood group and antibody screen)

Request a test

To request this test please send sample with a request providing patient ID (three identifiers), specimen information, assay required, relevant clinical details and sender information. Before sending sample please read details on requesting and labelling by clicking on the link. Please also refer to any additional information provided for this test. Download the referral form >

Additional information

Blood Transfusion samples must be handwritten and signed by the person who bled the patient. Please state the volume of blood required in millilitres, the time and date when blood is required and the specific reason for transfusion. Communicate any special transfusion requirements to the laboratory and send a special requirements form to the Blood Transfusion Laboratory.

Sending address

Department of Haematology Camelia Botnar Laboratories Great Ormond Street Hospital Great Ormond Street WC1N 3JH

Laboratory service


Sample requirements

2ml venous blood, EDTA (Blood Transfusion bottle only)

Turnaround time

Up to 24 hours


Upon request

Call in advance?

Not required


The Haematology Department provides a wide range of specialist tests with a special interest in the diagnosis and monitoring of coagulation disorders.

© 2011 Great Ormond Street Hospital for Children NHS Trust