FIELD: medical engineering. SUBSTANCE: device has rule with digital scale graduated in values of relative leukocyte content in leukocytic blood formula on the upper edge of the rule, its lower edge being graduated with numeric values showing predicted aminotransferase activity normalization time in days and provided with slide rule cursor member. The cursor is pivotally mounted on the rule to match values distributed on the both sides of the rule. The scale of relative leukocyte content with 5 units long step is built. The numeric value on the scale of relative leukocyte content value changing from 50 to 5%, the corresponding value on the scale of predicted aminotransferase activity normalization time grows from 10 to 55 days. EFFECT: high accuracy of prediction. 1 dwg
