Optimization of platelet-Type blood supply using integer programming method

Abstract

Two significant challenges in inventory management of human blood, which have perishable characteristics, are overstock and stockout. Overstock can result in wastage. Meanwhile, stockout may result in a delay in the treatment of the patient. Therefore, it can increase the patient's risk for death. Efficient blood inventory management must meet the demand while reducing wastage and minimizing costs. The blood supply in Indonesia is currently managed by the Indonesian Red Cross, while the Blood Transfusion Centre handles the blood supply service from the Indonesian Red Cross. The blood Transfusion Centre in Banyumas is one of 37 Blood Transfusion Centers by the Indonesian Red Cross located in Central Java. This Centre often faces problems in its operational activities, and the most critical problem is overstock, especially for platelet type of blood. Thus, it is necessary to research to determine the optimal inventory planning and control of platelet type of blood. The method used in this study is the Integer Programming method. The results of this research show that the optimal platelet inventory policy is to maintain an average level of platelet intake per day of 3 bags for blood type A, four bags for blood type B, six bags for blood type O, and two bags for blood type AB. From the data processing, it is obtained the minimum total cost is Rp146.128.500. The optimization model results in cost savings by Rp47.501.500.