電血 Irradiated blood
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尋晚返工聽交更,話一個有B cell lymphoma嘅病人要輸電血





原來電血即irradiated blood ,指已用gamma 射線消滅fresh blood product 嘅T Lymphocyte,令佢唔可以增生,去attack recipient 嘅 skin,liver , GI tract, 仲有最重要嘅bone marrow



電血最重要係預防TA- GVHD (transfusion associated- graft versus host disease), 即是包血有 active donor t lymphocyte( CD4,CD8),去打受血者嘅organ,引起fever, rash, diarrhea,pantocypenia and 會死人架






睇返個mechanism, 一般輸血過程,包血都有active t lymphocyte ,佢會bind on 受血者Receipient嘅 HLA antigen 引起反應





但immuno-comprimised 人就唔同講法,人地嘅T lymphocye打到嚟,自己都無兵還擊,好似我個case 咁,B cell lymphoma,自己嘅lymphocyte dysfunction, 點夠抽,好容易俾人拿下skin, liver, GI tract 同俾人將埋軍



其實immuno-competent嘅人都有機會









最後,作為nurse,最重要留意係咪血科病人特別係t lymphocyte dysfunction, lymphoma, stem cell transplant patient要輸血,要唔要電血




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