The process involves collecting two units of concentrated erythrocytes from a single donor during one donation appointment. This is accomplished through a specialized automated cell separation device that returns the donor’s plasma and platelets, along with a portion of their saline, to the donor during the procedure. The resulting product contains a higher concentration of oxygen-carrying capacity compared to a single unit collected during a standard whole blood donation.
This type of blood component donation is particularly valuable because it optimizes blood supply efficiency. It allows for more effective treatment of patients requiring significant red cell transfusions, such as those with traumatic injuries, surgical procedures, or chronic anemias. Furthermore, it reduces the number of donor exposures for recipients, minimizing the risk of transfusion-related complications. Historically, obtaining a similar quantity of red blood cells would require drawing from two separate donors, increasing logistical complexity and potential risk.
