The present invention relates to a method for predicting the concentration or the mass of haemoglobin, in a body fluid and/or an extracorporeal sample thereof of a patient at a later, second point of time, the patient having theoretically or in reality been administered a certain dose of an erythropoesis stimulating agent at an earlier, first point of time. It relates further to a method for determining the dose of an erythropoesis stimulating agent to be administered to a patient, to a method for determining whether a patient is affected by circumstances leading to the loss of haemoglobin, to corresponding devices and to an erythropoesis stimulating medicament for use in the treatment of anemia. Finally the present invention relates to corresponding means, digital storage means, a computer program product, and a computer program.本發明有關一種方法,用以預測於較後之第二時間點時,病患體液及/或其體外樣本內的血紅素濃度或質量,而該病患理論上或實際上已於較早之第一時間點被投予某一劑量之造血作用刺激劑。本發明進而有關一種用以決定欲投予病患之造血作用刺激劑劑量之方法,一種用以決定病患是否受到導致血紅素耗損情況影響之方法,有關對應的各種裝置,並有關一種用於治療貧血之紅血球生成刺激藥劑。最後,本發明有關各種對應的裝置、數位儲存裝置、電腦程式產品及電腦程式。9‧‧‧裝置11‧‧‧控制器13‧‧‧外部資料庫14‧‧‧資料輸入裝置15‧‧‧監測器
