Why temperature is maintained within2 and 6degree celsius for store blood?
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Whole blood and red cell concentrate must always be stored between 2°C and 6°C. A fall in temperature less than 2°C can cause freezing injury to the red cells leading to haemolysis. If haemolysed blood is transfused to a patient, it can lead to fatal consequences.
Temperatures more than 6°C can lead to overgrowth of non specific bacteria which may have entered the blood unit during collections or component preparation.
As red cells consume glucose for their continued metabolism, storing a blood unit at 2-6°C will also decrease the rate of glycolysis.
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