
Changes in hemoglobin, lactate dehydrogenase and total bilirubin levels after the transfusion. The white arrow indicates 1 unit of A+ Fy(a+b–) leukoreduced filtered red blood cell (LRFRBC) transfusion and the black arrow indicates 1 unit of O+ Fy(a–b+) LRFRBC transfusion.
Abbreviations: Tx, transfusion; HD, hospital day; LDH, lactate dehydrogenase.