exchange transfusion

transfusion /trans·fu·sion/ (-fu´zhun) the introduction of whole blood or blood components directly into the bloodstream.

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direct transfusion  immediate t.

exchange transfusion  repetitive withdrawal of small amounts of blood and replacement with donor blood, until a large proportion of the original volume has been replaced.

immediate transfusion  transfer of blood directly from a vessel of the donor to a vessel of the recipient.

indirect transfusion , mediate transfusion introduction of blood which has been stored in a suitable container after withdrawal from the donor.

placental transfusion  return to an infant after birth, through the intact umbilical cord, of the blood contained in the placenta.

replacement transfusion , substitution transfusion exchange t.

twin-to-twin transfusion  an intrauterine abnormality of fetal circulation in monozygotic twins, in which blood is shunted directly from one twin to the other.

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exchange transfusion

n.

The removal of most of a patient's blood followed by introduction of an equal amount from donors. Also called substitution transfusion, total transfusion.

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exchange transfusion

see exchange transfusion.

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exchange transfusion

Neonatology A therapeutic procedure for reducing immunotoxins in the neonate by administration of compatible packed RBCs Indications HDN–due to maternal IgG antibodies against fetal antigens; neonatal hyperbilirubinemia, due to RBC and bilirubin metabolic defects Complications Thrombocytopenia, iron deficiency, HBV–rare, HIV–very rare