Predicting late anemia in critical illness

Table 4 The intensive care unit anemia score

Risk factor	Points^c
Abnormal lactate^a (> 1.5 mg/dl)	6
Inotropic support	5
Surgical patient	11
Non-emergent surgery	5
Each g/dl of hemoglobin less than 14 g/dl^a,b	3

^aCalculated as the worst value at 6 hours after admission to intensive care unit. ^bIf baseline hemoglobin is 14 g/dl or more, the deficit is 0. ^cFor example, a surgical patient (11 points) with a lactate concentration of 4.0 g/dl (6 points) and a hemoglobin level of 9 g/dl (15 points) earns 32 points. From Figure 3, this corresponds to a risk of late anemia of 42.4%.

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