Punaluâu black sand beach is the most famous black sand beach on the Big Island! It is located between Kona and Hilo, and most easily accessible from Volcano Village. Punaluâu Black Sand Beach Punalu'u beach is the most famous black sand beach of Hawaii.
Plasmapheresis is a procedure in which blood. is separated into cells and plasma (liquid). The plasma is removed and replaced with fresh. frozen plasma, a blood product called albumin. and/or a plasma substitute. The procedure. is often referred to as plasma exchange. Plasmapheresis.
Most routine laboratory tests are performed on either plasma or serum. Plasma is the liquid portion of blood. It is separated from the cellular portion of blood by rapidly spinning the specimen in a centrifuge for several minutes. The plasma, which has a light yellow color, appears at the top of the tube, while the blood cells are at the bottom. Serum is plasma that has been allowed to clot. It is prepared in the same way as plasma; however, the blood is collected into a tube with no anticoagulant. While spinning in the centrifuge, the clot moves with the cells to the bottom of the blood collection tube, leaving the serum on top.