A variety of different ADAMTS13 assays are available within UCLH and HSL testing laboratories which in our opinion has led to major advances in the diagnosis and treatment of TTP and other related TMAs.

Additional assays may be required based on the initial ADAMTS-13 activity results and clinical details provided.

To request an assay, please download and complete a request form below. All request forms and samples should be sent to:

HSL Haemostasis Laboratory
Haematology Department
60 Whitfield Street
London W1T 4EU

For further information please contact: uclh.ttp@nhs.net