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Platelets collected by using apheresis at an American Red Cross donation center. Not all platelet transfusions use platelets collected by automated apheresis. The platelets can also be separated from donations of whole blood collected in a traditional blood donation, but there are several advantages to separating the platelets at the time of collection.
Plasma collected at the same time as plateletpheresis is sometimes called concurrent plasma. Apheresis is also used to collect more red blood cells than usual in a single donation (commonly known as "double reds") and to collect white blood cells for transfusion. [79] [80] A relatively large needle is used for blood donations.
Understand the different processes before you decide to give.
Sometimes the plasma is thawed and transfused as Fresh Frozen Plasma (FFP), much like the plasma from a normal blood donation. [26] Manual method For the manual method, approximately the same as a whole blood donation is collected from the donor. The collected blood is then separated by centrifuge machines in separate rooms, the plasma is ...
The reason that donating plasma takes so long is because of the process of separating the plasma from the blood at the time of the donation. There is nothing that you have to do except sit there ...
Tips to consider before donating blood. You can donate blood every eight weeks if you are giving whole blood (about a pint) and every 16 weeks if you are giving a Power Red donation (about two pints).
For apheresis platelet donation the donor's pre platelet count should be above 150 x 10^9/L. For apheresis plasma donation, the donor's total protein level should be greater than 60 g/L. For double red cell apheresis, donors of either gender require a minimum hemoglobin level of 14.0 g/dl. [15]
Higher platelet transfusion thresholds have been used in premature neonates, but this has been based on limited evidence. [19] There is now evidence that using a high platelet count threshold (50 x 10 9 /L) increases the risk of death or bleeding compared to a lower platelet count threshold (25 x 10 9 /L) in premature neonates. [20]
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