After our initial briefing, we will ask you for a blood sample.
Your blood sample is used to analyse your tissue characteristics.
Your characteristics will be matched with those of the patient for confirmation of a suitable match. This analysis is designed to ensure the safety of the patient and to confirm that you are indeed their 'genetic twin'.
We will also check your blood for certain pathogens, such as HIV or hepatitis viruses, to rule out any possibility of infectious diseases being transferred to the patient through the transplant.
On occasions, a blood stem cell transplant may be particularly urgent for the patient, or we may already have all of the typing results that we need from you in our database. In such cases, further confirmatory typing will not be required at first and will be carried out during the detailed medical examination that all donors undergo in preparation for a blood stem cell donation.
The medical examination also serves as a further precaution to protect your health. It is only carried out when we know from our briefing call and from your health questionnaire that you are able to donate stem cells and consent to the procedure.