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How are the blood cells and plasma separated?

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in Clinical Science by (102k points)
How are the blood cells and plasma separated?

(a) hematocrit

(b) hot plate

(c) centrifuge

(d) water bath

The question was asked in examination.

My doubt is from General Pathology topic in portion Pathology of Clinical Science

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Correct choice is (a) hematocrit

For explanation: The blood is collected, heparin is added to it and then the blood is centrifugated at 10,000 RPM. Then the blood is left to settle down. The cells due to higher weight settle down and the plasma floats up. The RBCs have the highest density so they settle down at the bottom. Then comes a layer of WBCs and then platelets. The plasma is collected above the platelets.

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