How does it work? of Blood transfusion

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Before a transfusion is given, the blood of the donor and the recipient must be tested against each other to ensure they are compatible. This is more specific than simply using blood from the same group and is called cross-matching. A sample of your blood is taken and matched with a suitable donor. Before you receive the transfusion itself, hospital staff will also make careful identification checks of your full name, date of birth, and the details on your wristband.

Occasionally the patient's own blood, collected at operation or obtained earlier, is used. This is called autologous blood donation. Blood is taken periodically for some time prior to surgery, stored, and then used if necessary during or after surgery. Autologous blood transfusion is not a routine procedure because it is uneconomical. If surgery is delayed, some of the units of blood may go out of date, or you may not require the blood anyway. The careful screening of donor blood means that it generally does not carry a greater risk of infection.

Talk to your GP or consultant if you are thinking about autologous blood transfusion. They will know the blood requirements for your operation and advise you if you are suitable for the procedure.