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Blood Transfusions

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A wide variety of organisms, including bacteria, viruses, prions, and parasites can be transmitted through blood transfusions. Some of the safety measures taken to ensure blood safety during collection, storage, and transportation are as follows:

* The plasma is frozen within eight hours of collection in order to maintain the activity of factor V and factor VII.

* Both blood and plasma transfusions must be matched to avoid an immune reaction.

* Before anyone receives blood, both the blood and the person receiving it are tested carefully to avoid a reaction.

* As a biological substance, blood must be kept cold in order to reduce bacterial contamination and to prolong its life.

* Whole blood is warm when collected but must be cooled down to 40C and kept at this temperature until the point of transfusion.

* The blood cold chain begins at the time the blood is collected and continues until it is transfused.

* The transportation of blood between and within blood banks and hospitals requires use of cooler boxes that ...

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