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Preparation of serum cups for a lipids panel designed to test cholesterol levels in a patient's blood. Serum (/ ˈ s ɪər ə m /) is the fluid and solvent component of blood which does not play a role in clotting. [1] It may be defined as blood plasma without the clotting factors, or as blood with all cells and clotting factors removed.
Serum sample preparation requires about 30 minutes of waiting time before it can be centrifuged and then analyzed. [23] However, coagulation can be hastened down to a few minutes by adding thrombin or similar agents to the serum sample. [25] Compared to serum, 15–20% larger volume of plasma can be obtained from a blood sample of certain size.
Blood serum and blood plasma are similar, but serum does not contain any clotting factors such as fibrinogen, prothrombin, thromboplastin and many others. Serum includes all proteins not used in coagulation (clotting) and all the electrolytes, antibodies, antigens, hormones and any exogenous substances, such as drugs and microorganisms.
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This involves integration of all of the steps in the analytical process, from the initial removal of plasma from whole blood to the final analytical result, on a small microfluidic device. This is advantageous because it reduces turn around time, allows for the control of variables by automation , and removes the labor-intensive and sample ...
Thrombin, combined with fibrinogen, is sold under the brand name Fibrimex for use as a binding agent for meat. Both proteins in Fibrimex derives from porcine or bovine blood. [ 30 ] According to the manufacturer it can be used to produce new kinds of mixed meats (for example combining beef and fish seamlessly).
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Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells.