Category of Anemia

Postoperative RBC transfusion in units

Maximum units of RBC transfuison

Mild anemia (Mean RBC units ± SD)

1.1 ± 0.8

8

Moderate anemia (Mean RBC units ± SD)

1.1±0.6

6

Severe anemia (Mean RBC units ± SD)

1.6 ± 0.6

2