exchange transfusion

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exchange transfusion

[iks′chānj tranz‚fyü·zhən]
(medicine)
The replacement of most or all of the recipient's blood in small amounts at a time by blood from a donor, a technique used particularly in cases of erythroblastosis fetalis, in certain types of poisoning such as salicylism, and occasionally in liver failure. Also known as replacement transfusion.