In the developed nations, there are rare cases of deficiency of vitamin B2 since most of the food products with refined carbohydrates contain a good amount of riboflavin. Also, eggs and meat which are also commonly consumed are a good source of vitamin B2.
Blood plasma and serum â Blood plasma, or plasma, is prepared by obtaining a sample of blood and removing the blood cells. The red blood cells and white blood cells are removed by spinning with a centrifuge.
Plasmapheresis refers to a procedure in which the plasma is separated from the blood either by centrifugation or membrane filtration. Once separated the plasma can be manipulated in a variety of ways. Plasma exchange refers to discarding the plasma totally and substituting a replacement fluid.