What is PBSC (peripheral (circulating) blood stem cell) donation?
Before donation, a donor takes injections of a drug called filgrastim to move more blood-forming cells from the marrow into the bloodstream. Stem cells are collected from the peripheral (circulating) blood in an outpatient setting using a procedure called apheresis. During apheresis, blood is removed through a needle in one arm, the stem cells are collected from the blood, and the remaining blood components are returned through the needle.