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to confirm that it contains no antibodies that will
agglutinate or lyse the cells.
In order to avoid blood of the wrong group being
transfused in error, it is necessary to maintain an elaborate
system of labelling ,record keeping and cross-checks.
The legal implications ,the supervision of a hospital blood
bank and of associated laboratory work should always be
the direct responsibility of a pathologist fully trained in
heamatology . Responsibility for the storage and issue of
blood &of plasma & of plasma fractions should not be
given to or accepted by pharmacies.
Bleeding
1-Collect blood from the doner’s arm over the antecubital
vein.
2-Blood is collected in a bottle or plastic bag containing
2-2.5g disod.hydrogen citrate ,3g dextrose & water to
120ml(acid -citrate-dextrose anticoagulant),Volume of
420ml of blood are collected.
3- Two samples were taken ,one for syphilis &blood group
yest ,& one for compatibility test.
BP requirements:
1-Blood cooled to 4-6 ₀ immediately after withdrawal
from the donor,during 21 days
2-The heamoglobulin conc.of blood -anticoagulant mixture is
not less than 9.7g /d.l
-2-