What is the Difference Between Serum, Plasma and Whole Blood?
The term blood means whole blood. Whole blood contains water, proteins, nutrients and blood cells. The cell portion of blood includes red and white blood cells and platelets while the fluid portion is called plasma or serum. Plasma is obtained by separating the liquid portion of the unclotted blood from the cells. Serum is the fluid that remains after the blood has clotted. It contains no cells and no dissolved protein.
