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| *Women health>>>Blood Transfusion |
Why red blood cells are irradiated before transfusion and why stem cells and plasma are not irradiate.? |
Why red blood cells are irradiated before transfusion and why stem cells and plasma are not irradiate.? Many units of red blood cells and platelets ARE irradiated before transfusions. This is done to inactivate lymphocytes in the donor units. Immunocompromised patients with various leukaemias and lymphomas who may be candidates for marrow transplants are put at risk of GVHD (graft versus host disease if they receive blood that has not been gamma irradiated. The lymphocytes from the donor can actually graft and start rejecting the host (ie. the recipient of the blood). Plasma is not irradiated because it has had all the cells removed from it. Cells are not irradiated prior to transfusion as they will not function after radiation. Plasma does not contain any cells. Packed red cells are used for most general blood transfusions. White cells and stem cells need to tissue cross matched before transfusion to prevent conflicts with the host immune system. Most blood in the US is not irradiated prior to transfusion. Irradiated blood is generally only given to a patient when requested by their doctor. Liz is correct in stating when (clinical conditions) doctors request irradiated units. |
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Many units of red blood cells and platelets ARE irradiated before transfusions. This is done to inactivate lymphocytes in the donor units. Immunocompromised patients with various leukaemias and ... blood A+ has antigen A on it's blood cell while blood B+ has antigen B on it's blood cell. if an individual with blood A+ is infused with blood B+, the body would immediately sense a for... Wrong blood types will immediately clump together in clots and cause heart attacks, strokes, or death. The blood cells have different types of antigens: A, B and none. If both A & B antigens,... no, a lot would be six to eight pints, replacing the entire blood supply. ...With regard to transfusions of whole blood or packed red blood cells, individuals with type O negative blood are often called universal donors, and those with type AB positive blood are called univ... Well, you got what you wanted from those who don't have the first clue about the issue. Want a dose of reality? Get the FACTS on how many mother's children DIE each year AFTER a trans... They have every right to be idiots and waste their lives, but I'm still going to tell them they are idiots who are wasting their lives. ...It could be because of CJD - the human form of mad cow disease. There was an outbreak of this in the 90s. It is/ was believed that CJD (always fatal) was contracted from eating affected meat. I... |
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