On standing,a blood specimen to which an anticoagulant has not been added separates into

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When a blood specimen without anticoagulant stands, it clots, separating into serum (the liquid part after clotting) and blood cells. Plasma, in contrast, is the liquid component of blood when anticoagulants prevent clotting, and it contains clotting factors, unlike serum. The buffy coat, which contains white blood cells and platelets, is not a separate layer in this process.

On Standing,a Blood Specimen to Which an Anticoagulant Has Not