Final answer:
The blood product used for laboratory analysis that is free of clotting factors is known as serum (C). Serum is the clear, straw-colored liquid component of blood plasma obtained after the clotting process and removal of cellular elements.
Step-by-step explanation:
The blood product used for laboratory analysis that does not contain clotting factors is known as serum (C). Serum is the component of blood plasma that remains after the removal of clotting factors, such as fibrinogen, and cells. This fluid is rich in electrolytes, antibodies, antigens, hormones, and metabolic waste, making it essential for diagnosing and monitoring diseases, as well as for classifying blood types.
Plasma, on the other hand, is the fluid remaining after the removal of blood cells. It contains various components, including clotting factors, antibodies, proteins, lipids, and other substances necessary for the normal functioning of muscles and nerves. Unlike blood plasma, serum does not contain the coagulation factors that are required for blood clotting. In the clinical setting, serum is obtained by allowing blood to clot and then centrifuging to remove the clot and cellular components, resulting in a clear, straw-colored liquid.