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Hemotology
USE OF PLASMA VS. SERUM [DIFFERENCE BETWEEN PLASMA AND SERUM]
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Serum is the liquid obtained after clotting of whole blood sample collected in a plain tube.
Some of the differences between the two are as follows:
- Plasma contains fibrinogen as well as all the other proteins, while serum does not contain fibrinogen.
- Plasma can be obtained immediately after sample collection by centrifugation, while minimum of 30 minutes are required for separation of serum from the clotted blood.
- Amount of sample is greater with plasma than with serum for a given amount of blood.
- Use of anticoagulant may alter the concentration of some constituents if they are to be measured like sodium, potassium, lithium, etc.
- Posted by Dayyal Dg.
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