Fig. 2

Target haemoglobin in the case of transfusion (Expert opinion). The following figure proposes target Hb levels for transfusion in critical care patients, as a function of various clinical settings (i.e. the haemoglobin level below which (lower bound) single-unit transfusion is probably recommended to achieve Hb not exceeding the upper bound). The shaded zones on the figure represent the degree of uncertainty according to the experts, which is why this figure is proposed on the basis of expert opinion. The GRADE level of recommendation is indicated for each setting, in accordance with the above recommendations (R2.1 to R2.4). Note that these targets apply in the absence of active bleeding or poorly tolerated anemia, especially with cardiovascular symptoms