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Moderate"AABB allows a threshold of 8 g/dL in those with preexisting cardiovascular disease or undergoing orthopedic surgery; 7.5 g/dL is noted for cardiac surgery. Routine 9-10 g/dL thresholds are liberal (BAABB International Guidelines (2023): Red Blood Cell Transfusion"hematology"

A 64-year-old hospitalized with pneumonia has Hgb 7.9 g/dL

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