Abstract
A method was devised to evaluate the suitability of an infusion pump for transfusing components containing red cells. With simulated transfusions of units of whole blood tested before or after the expiration date there was no increase in the plasma hemoglobin level in pumped blood compared with blood that was put through a standard blood transfusion set. With outdated units of red cells there was an increased level of plasma hemoglobin after pumping. The increases were greatest at maximum pump rates, but were not statistically or clinically significant. The authors' evaluation indicates that this pump causes minimal damage to the red cells, although care should be exercised when rapidly transfusing red cells with high hematocrit values.
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