What term describes the blood fluid remaining after the blood cells and the clotting proteins have been removed?

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Multiple Choice

What term describes the blood fluid remaining after the blood cells and the clotting proteins have been removed?

Explanation:
In blood testing, the liquid left after the blood has clotted and the clotting proteins are removed is serum. When blood is allowed to clot, factors like fibrinogen become part of the clot; removing that clot leaves a clear fluid that contains minerals, antibodies, and other soluble components but no cells or clotting proteins. Plasma, by contrast, is obtained from blood that is collected with anticoagulant and still contains clotting factors. The buffy coat is the cell-rich layer of white blood cells and platelets, and platelets are tiny cell fragments, not a fluid. So the described fluid is serum.

In blood testing, the liquid left after the blood has clotted and the clotting proteins are removed is serum. When blood is allowed to clot, factors like fibrinogen become part of the clot; removing that clot leaves a clear fluid that contains minerals, antibodies, and other soluble components but no cells or clotting proteins. Plasma, by contrast, is obtained from blood that is collected with anticoagulant and still contains clotting factors. The buffy coat is the cell-rich layer of white blood cells and platelets, and platelets are tiny cell fragments, not a fluid. So the described fluid is serum.

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