Plasma Collection Steve Holton, a collection specialist and site supervisor for the East End Louisville American Red Cross Blood Donation Center, monitors the apheresis process, so named for separating whole blood into its components. Yellow plasma is collected into the left bag, to be used for the treatment of COVID-19. SHARE: Download: Full Size (3.24 MB) Tags: Coronavirus Credit: Eric Pilgrim, Army VIRIN: 200624-A-QT978-0002.JPG Photo Gallery