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In a typical set of rules, a platelet donor must weigh at least 50 kg (110 lb) and have a platelet count of at least 150 x 10 9 /L (150,000 platelets per mm³). [2] One unit has greater than 3×10 11 platelets. Therefore, it takes 2 liters of blood having a platelet count of 150,000/mm³ to produce one unit of platelets.
Post-transfusion purpura (PTP) is a delayed adverse reaction to a blood transfusion or platelet transfusion that occurs when the body has produced alloantibodies to the allogeneic transfused platelets' antigens. These alloantibodies destroy the patient's platelets leading to thrombocytopenia, a rapid decline in platelet count. [1]
Side effects can include allergic reactions such as anaphylaxis, infection, and lung injury. [2] Bacterial infections are relatively more common with platelets as they are stored at warmer temperatures. [2] Platelets can be produced either from whole blood or by apheresis. [1] They keep for up to five to seven days. [1]
Donating blood can help some hereditary conditions Hereditary hemochromatosis is a disorder that causes excess iron to build up in the blood. For this condition, donating blood is a benefit.
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In the lungs, the extra fluid accumulates into the air sacs within the lung, causing difficulties in oxygen getting into the blood. This results in low blood oxygen levels and shortness of breath. In the arms and legs, the fluid accumulates in the tissues, causing swelling. This is most prominent in the legs due to the effects of gravity.
Shaun Brennan sits in a donor chair alongside Chris Ruffin Jr. during a blood drive at LeMoyne-Owen College on April 19, 2024. Brennan has donated blood, plasma or platelets 517 times and had ...
Blood donation campaigns are events that allow people to donate blood at schools, churches, and other community locations. A blood drive or a blood donor session is an event in which donors come to donate allogeneic blood. These can occur at a blood bank, but they are often set up at a location in the community, such as a shopping center ...
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