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Abstract
Blood is a valuable as well as a perishable commodity that has a limited lifespan. So, keeping it in a blood bank requires careful attention and management. In this study, a management model has been designed for the blood bank that can cover all the requests sent through the hospital subunits in such a way that it has the least waste. First, by examining the blood inventory system of a hospital, the number of inventories per month and the distribution of blood products in subunits of the hospital, and the amount of blood wastage every six months were estimated. Then, using ARENA simulation, all parts of the blood bank, including the request section, emergency blood section, donated blood section, and other sections were simulated. Finally, 10 scenarios were extracted by placing various parameters and the best scenarios were discussed and concluded. The scenarios for the four blood groups included A, B, AB, and O were applied for six months in one year. The results showed that if the amount of blood injected into the blood bank is appropriate and at the right time, the amount of wastage can be reduced by up to 80% for most of the blood groups. The results of this study showed that if the system of receiving blood products built upon a precise management model is predetermined and placed with appropriate parameters, the amount of wastage will be reduced to the minimum possible number.
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