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sherif

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About sherif

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    chemist in blood bank
  1. In AABB technical manual : " for blood processing sample(s) by a method that prevents contamination of the contents of the bag. This can be done in several ways ................................. c. If a straight-tubing assembly set is used, the following procedure should be followed. Place a hemostat on the tubing, allowing about four segments between the hemostat and the needle. Pull tight the loose overhand knot made in step 5a. Release the hemostat, and strip a segment of the tubing free of blood between the knot and the needle (about 1 inch in length). Reapply the hemostat, and cut the tubing in the stripped area between the knot and the hemostat. Fill the required tube(s) by releasing the hemostat, and then reclamp the tubing with the hemostat. Because this system is open, Biosafety Level 2 precautions should be followed." what does this means?
  2. thanks and for me i want to know the effect of mixing donor blood with anticoagulant(ACD-CPD-CPDA-1) on viral marker testing results .
  3. thanks and what about my first question as pic. is this an open system ? and why ? and what sample requirements(especially anticoagulants) for viral testing by FDA ,AABB?
  4. whole blood with CPDA-1 is not suitable for viral marker testing ?
  5. as this pic. i mean taking samples from the bag after donation for serology ?someone ask this question " and why we considered it as open system blood bag needle get into vacuum tube and then open clip to get sample? "
  6. hello my question is how can we get samples for testing after donation from the bag ?and if the bag has not a pouch can we get it directly from the bag needle into vacuum tube or this considered an open system ?thanks
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