exchange transfusion(redirected from substitution transfusion)
Also found in: Dictionary, Thesaurus, Medical.
exchange transfusion[iks′chānj tranz‚fyü·zhən]
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.