<unk> , also called<unk>  for short, is a frozen blood product prepared from blood plasma. To create<unk> , fresh frozen plasma thawed to 1–6 °C is then centrifuged and the precipitate is collected. The precipitate is resuspended in a small amount of residual plasma (generally 10–15 mL) and is then re-frozen for storage. It is often transfused to adults as two 5-unit pools instead of as a single product. One of the most important constituents is factor VIII (also called antihaemophilic factor or AHF), which is why<unk>  is sometimes called<unk> d antihaemophilic factor or<unk> d AHF. In many clinical contexts, use of whole<unk>  has been replaced with use of clotting factor concentrates made therefrom (where available), but the whole form is still routinely stocked by many, if not most, hospital blood banks.<unk>  can be stored at −18 °C or colder for 12 months from the original collection date. After thawing, single units of<unk>  (or units pooled using a sterile method) can be stored at 20–24 °C for up to 6 hours. If units of<unk>  are pooled in an open system, they can only be held at 20–24 °C for up to 4 hours. Presently<unk>  cannot be re-frozen for storage after it is thawed for use if it is not transfused. Cross-matching (compatibility testing) is not necessary and all ABO groups are acceptable for transfusion to people of all ABO types.
Cryoprecipitate
Neohemocyte
Fresh frozen plasma
Packed red blood cells
Platelet-rich plasma
Protamine
Autologous conditioned serum
Whole blood