Technically,<unk> " can refer to any blood product, but typically Involves removing patient's RBCs and replacing with donor RBCs
When treating neonatal polycythemia, RBCs are replaced with normal saline, albumin, or plasma rather than donor RBCs
In contrast to simple transfusion, avoids hyperviscosity and volume overload
Erythrocytapheresis: involves separating out patients RBCs from other blood components<unk> racorporeally in a centrifuge, then returning the rest of the patient's blood to them with the donor RBCs
When treating neonatal polycythemia, RBCs are replaced with normal saline, albumin, or plasma rather than donor RBCs
Exchange transfusion
Massive transfusion
Massive transfusion 
Platelet transfusion
Cryoprecipitate transfusion
Fresh frozen plasma
Packed red blood cells
Plasmapheresis