“…8,9 Therefore, blood should be transfused considering factors such as age, disease severity, and specific diagnoses. 6,7,10,11 Yet in a United Kingdom survey of transfusion practices with the critically ill, Boralessa et al 12 reported RBC transfusion triggers of 9 to 10 mg/dL. Another survey of European ICU transfusion practices found that the mean pretransfusion hemoglobin level of patients not actively bleeding was 8.5 mg/dL.…”