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Blood Components preparation

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  • تصفية - فلترة
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  • Blood Components preparation

    Blood is collected as whole blood, as shown below





    Blood can be stored as whole blood (with all of the plasma present) or, much more commonly, as packed red blood cells (PRBC's) in which about 70% of the plasma has been removed. This is done by light centrifugation, as shown below



    The platelet rich plasma can then be expressed off, leaving packed red blood cells (PRBC's) as shown here



    The plasma can be centrifuged heavily a second time to separate the platelet rich plasma, as shown below





    The supernatant plasma can be expressed into a third bag and stored as fresh frozen plasma (FFP). The remaining platelet rich plasma is utilized as a platelet pack, as shown below



    As can be seen in the above diagram, a single donation of whole blood has supplied three separate components (packed red blood cells, platelets, fresh frozen plasma) that can potentially benefit three different patients.
    After the expiration date, rare or valuable blood units can be "rejuvenated" with a biochemical solution that restores much of the original biochemical environment of the RBC's. The "rejuvenated" units are "washed" with isotonic saline in an automated device and then can be transfused as a saline-red blood cell suspension within 2 to 4 hours, or these units can be stored glycerolized and frozen for up to 10 years

  • #2
    شرح مختصر وأكثر من رائع .. مشكور اخي سعودي
    ---------

    ولجلهم ماني [بخيل] بعمري أنا سلوان
    وبحبهم أنشد وأردد يا [فلانه] ولهان

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    • #3
      مشكوووووور اخوي سباي على الموضوع ذا...
      وبالفعل فصل المكونات ذي تساعد بالراحه 3 اشخاص...المشكله مشكله الـPlatelates ان الـSpin life حقها فقط 5 ايام في درجه 22

      ويعد اذنك اخوي سباي تم تغيير عنوان الموضوع ...
      وشكرا لك مره اخرى
      سلااااااااام
      http://www.tntup.com/photo/img2/1663...5a9acb/hiv.jpg

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      • #4
        موضوع رائع ....وشامل ووافي....


        أشكركـــ أخوي ... ولا تحرمنــا من جديدكــ


        تقبل تحياتي....
        .......................http://www.7th-3.com/vb/images/icon/mid.gif.......................
        المجهــــــــر والسيرنج والدميان تعرفنيـــ .........................................
        .................................................و القلافز والامصال والسلايد والقلم

        :sm175: وش دخل القلم ....<------يكمل الوزن:sm198:
        .......................http://www.7th-3.com/vb/images/icon/mid.gif.......................
        LAB MaSteR

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