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Cryoprecipitate, also called cryo for short, or Cryoprecipitate Antihemophilic factor (AHF), is a frozen blood product prepared from blood plasma. [1] To create cryoprecipitate, Plasma is slowly thawed to 1–6 °C. A cold-insoluble precipitate is formed, which is collected by centrifugation, resuspended in a small amount of residual plasma ...
A blood substitute (also called artificial blood or blood surrogate) is a substance used to mimic and fulfill some functions of biological blood.It aims to provide an alternative to blood transfusion, which is transferring blood or blood-based products from one person into another.
This method is significantly simplified compared to the Cohn Process. Its goal is to create high albumin yields as long as albumin is the sole product. Through a two-stage process, impurities are precipitated directly from fractions II and III supernatant at 42% ethanol, pH 5.8, temperature −5 degrees C, 1.2% protein, and 0.09 ionic strength.
The term cryosupernatant (also called cryo-poor plasma, cryoprecipitate depleted, cryoprecipitate reduced plasma) refers to plasma from which the cryoprecipitate has been removed. It is used to treat thrombocytopenic purpura .
In the United States it refers to the fluid portion of one unit of whole blood that has been centrifuged, separated, and frozen solid at −18 °C (0 °F) or colder within eight hours of collection from whole blood donation or was otherwise collected via apheresis device. [9] The phrase "FFP" is often used to mean any transfused plasma product.
A blood product is any therapeutic substance prepared from human blood. [1] This includes whole blood; blood components; and plasma derivatives.Blood components include: red blood cell concentrates or suspensions; platelets produced from whole blood or via apheresis; Granulocyte, plasma; and cryoprecipitate.
The amount allowed in a donation varies vastly from country to country, but generally does not exceed two donations, each as much as a liter (one-third of the total plasma volume), per seven-day period. If a significant amount of red blood cells cannot be returned, the donor may not donate for 56 days, just as if they had donated a unit of blood.
Red blood cell concentrates, also known as red cell concentrates or packed red blood cells, are red blood cells that have been separated for blood transfusion. [1] A red blood cell concentrate typically has a haematocrit of 0.50 – 0.70 L/L and a volume between 250 and 320 mL.