‹ Knowledge base
Browse the corpus
Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.
1 passage
recommendationchoosing-wisely· transfusion medicine· item cwus-aabb-001
Don't transfuse red blood cells for arbitrary hemoglobin or hematocrit thresholds in the absence of symptoms, active bleeding, or hemodynamic instability. Setting: hemodynamically stable, non-bleeding hospitalized patient with hemoglobin at or above the restrictive threshold (7-8 g/dL) Why: A restrictive transfusion threshold is as safe as or safer than liberal transfusion and avoids the costs and risks of unnecessary blood products. Consider instead: restrictive transfusion strategy; transfuse for symptoms rather than a number Source: AABB (American Association of Blood Banks) (Choosing Wisely, US, 2014).