Serum and plasma from the surface does not seem to be different, but the main difference is that the serum does not contain fibrinogen, is not anticoagulant treatment of blood after coagulation. Drawing blood for laboratory tests have the requirement to use serum to do the test, this requirement is mostly seen in the blood biochemistry, immunity and other aspects of the determination, can be measured by biochemical analyzer; plasma is mostly used for coagulation test, the detection of instruments to the blood coagulation analyzer; and whole blood is mostly used in the blood cells, blood, blood sedimentation, and other aspects of the determination of the detection of the instrument for the hematology analyzer.
Peripheral blood and venous blood both belong to whole blood. Peripheral blood refers to blood collected from capillaries at the end of the human body, including fingertip blood and earlobe blood, while venous blood refers to blood drawn from large veins in the arm.
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