T cell receptor excision circlet analysis

Also known as

T cell receptor excision circlet analysis

Request a test

Please contact the Bone Marrow laboratory to arrange

Additional information

Must arrive within 48 hours and by 3pm on Fridays. Sample volume is dependent upon cellular concentration of sample. Please check the WBC and differential count of the patient and discuss with the laboratory before taking the sample. If performed with spectratyping no additional sample is required.

Sending address

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

Laboratory service


Sample requirements

5-10 ml venous blood, EDTA. Please refer to additional information regarding sample volume.

Turnaround time

28 days


Upon request

Call in advance?

Please contact the laboratory to arrange the test in advance


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