As with any donation, donors need to meet the donor criteria. Whole blood is drawn during a routine donation procedure, and then separated into its constituent plasma, red cells and platelets.
Platelets play a vital role in clotting the blood and preventing excessive blood loss. Platelet transfusions are used to treat patients with leukaemia, aplastic anaemia and other blood disorders. Platelets have a shelf life of only five days and must be processed within eight hours of donation.