How is Plasma taken from blood?

Answer 1

"Blood plasma is the liquid component of blood, in which the blood cells are suspended. Plasma is the largest single component of blood, making up about 55% of total blood volume. Serum refers to blood plasma in which clotting factors (such as fibrin) have been removed. Blood plasma contains many vital proteins including fibrinogen, globulins and human serum albumin.

Plasma resembles whey in appearance (transparent with a faint straw colour). It is mainly composed of water, blood proteins, and inorganic electrolytes. It serves as transport medium for glucose, lipids, amino acids, hormones, metabolic end products, carbon dioxide and oxygen. (The oxygen transport capacity and oxygen content (CaO2) of plasma is much lower than that of the hemoglobin in the red blood cells; the CaO2 will, however, increase under hyperbaric conditions.) Plasma is the storage and transport medium of clotting factors. Its protein content is necessary to maintain the oncotic pressure of the blood, which "holds" the serum within the vessels."

"To obtain whole blood and plasma, gently mix the drawn blood by inverting the tube a few times. This will ensure proper mixing of the anticoagulant with the whole blood. To obtain serum, place the blood vial on a slanted surface for 10 to 15 minutes to allow for clotting. The plasma and serum samples can now be spun by centrifugation. Vials containing the blood samples (serum, plasma, or whole blood) should be refrigerated and sent to a diagnostic laboratory as soon as possible."

Answer 2

Here's how it works. Blood contains fluid, red cells, white cells, proteins, and other things. We refer to that as just "whole blood" in medicine (like when we're talking about a transfusion). To separate out the cells, there's a machine that can spin tubes of blood. The forces generated by the spinning make the heavier components like the cells go to the bottom. The leftover is called plasma. If you hear someone use the word "serum", we mean just the fluid itself with no cells or clotting proteins.

Answer 3

For hematalogical, biochemical, blood bank-related, immunological and other kinds of tests, plasma is obtained from whole blood. To prevent clotting, an anticoagulant such as citrate or heparin is added to the blood specimen immediately after it is obtained. (Usually the anticoagulant is already in the evacuated blood collection tube (e.g. Vacutainer or Vacuette®) when the patient is bled.) The specimen is then centrifuged to separate plasma from blood cells. Plasma can be frozen below -20°C nearly indefinitely for subsequent analysis or use.

Answer 4

the blood is drawn and then put into a centrifudge which spins the blood separating the components.

Answer 5

hey matey i actualy seen one of theze machine what they do is spin the blood realy fast an it seperates it into ,,,ie:pletletes.,but you proberly find out more of someone who uses or invented it they use it for stem cell research also.

Answer 6

I believe they use a Centrifuge

Answer 7

you properly centrifuge its, and remove the sediment