This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
Expected Hb rise after transfusion
From volume and weight: German Medical Association (1 g/dl per 3 ml/kg), Davies (ml/kg × Hct / 3) and BSH inverse formula
Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.
Frequently asked questions
Expected Hb rise after transfusion: What does this calculator compute?
Estimates the expected hemoglobin rise after administration of a volume of packed red blood cells: 1 g/dl per 3 ml/kg (German Medical Association 2020), volume (ml/kg) × hematocrit of the concentrate / 3 (Davies 2007) and the inverse of the BSH formula with factor 4.
Expected Hb rise after transfusion: Which sources is this calculator based on?
German Medical Association: Cross-sectional guidelines for therapy with blood components and plasma derivatives – complete revision 2020 (chapters 1.5.1.5 and 2.9) (2020); New HV, Berryman J, Bolton-Maggs PHB, et al.; British Society for Haematology: Guidelines on transfusion for fetuses, neonates and older children (Br J Haematol 175:784–828) (2016); Davies P, Robertson S, Hegde S, Greenwood R, Massey E, Davis P: Calculating the required transfusion volume in children (Transfusion 47:212–216) (2007)