In which scenario are washed red blood cells particularly useful?

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Multiple Choice

In which scenario are washed red blood cells particularly useful?

Washed red blood cells are used to minimize reactions caused by donor plasma proteins, especially in patients with IgA deficiency who have anti-IgA antibodies. By washing away most of the donor plasma, IgA and other soluble proteins are removed, greatly reducing the risk of hypersensitivity reactions or IgA-related anaphylaxis during transfusion. They don’t inherently improve oxygen delivery or iron delivery, since those depend on red cell mass and hemoglobin content, not the removal of plasma. Reducing the risk of transfusion-related graft-versus-host disease is achieved mainly by irradiating blood products, not by washing, so washing isn’t the primary method for that protection.

Washed red blood cells are used to minimize reactions caused by donor plasma proteins, especially in patients with IgA deficiency who have anti-IgA antibodies. By washing away most of the donor plasma, IgA and other soluble proteins are removed, greatly reducing the risk of hypersensitivity reactions or IgA-related anaphylaxis during transfusion. They don’t inherently improve oxygen delivery or iron delivery, since those depend on red cell mass and hemoglobin content, not the removal of plasma. Reducing the risk of transfusion-related graft-versus-host disease is achieved mainly by irradiating blood products, not by washing, so washing isn’t the primary method for that protection.

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