Plasma classification:
1. Fresh frozen plasma: FFP is obtained by separating plasma within 6 hours after blood collection, freezing it below -30℃ and preserving it below -20℃.
2. Ordinary frozen plasma: it mainly includes plasma separated from whole blood and stored for more than 6-8 hours, and plasma separated within the validity period of whole blood and stored for one year.
3. Virus-inactivated plasma: It is made by using methylene blue virus inactivation technology to inactivate the virus in the plasma separated during the validity period of whole blood or the remaining plasma after the cold-precipitated coagulation factor is separated from fresh frozen plasma and freeze it into a solid state.
Extended data:
Plasma composition
The liquid component of blood accounts for about 50-60% of the whole blood cellar. In addition to water, there are various plasma proteins, inorganic salts, glucose, hormones and other substances in plasma. Electrolyte, nutrients, enzymes, hormones, cholesterol and other important components.
The difference between plasma and serum
Plasma: no free calcium ions.
Serum: contains free calcium ions.
The coagulation factors in serum are much less and the coagulation products are much more.
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