The modern concept of blood transfusion is to transfuse to patients only the component he/she requires. Moreover, the advantage of preparing components is that from a single donation, many patients can benefit. Component transfusion also minimizes the risks associated with whole blood transfusion.
Following components are prepared from a unit of whole blood
Fresh frozen plasma and cryoprecipitate
These are other components prepared from a unit of whole blood. They are usually used to treat deficiency of coagulation factors when such factors are not available.