تهيه الگوي مناسب براي تخمين خون مورد نياز در ايران

The development of an appropriate model to estimate required blood supply for Iran

Introduction: Estimating amount of the blood supply needed in hospitals is one of the fundamental planning issues in all blood transfusion centers so that based on this data the relevant centers would be able to ensure the required blood through appropriate planning and allocation of the necessary facilities. The goal of the present study was to estimate the required blood collections in the country, based on the calculations of the blood use in the previous year and the number of active hospital beds in Mashad and Kerman cities as a model , so that it would be possible to estimate needs more precisely and ensure the availability of blood and blood components for the use of hospitals throughout Iran. Method: In this study , different methods currently used to estimate the needed blood supply according to population, active hospital beds, the condition of special patients in the region , the study of blood requests by medical centers of Mashad and Kerman were analyzed. Then , a suitable model to estimate the need blood supply in the country was recommended . Results: The results show that in the cities of Mashad and Kerman 11.15 and 6.77 blood units were ordered per active hospital bed, respectively. These data combined with the rate of blood use in the previous year indicate that in Mashad and Kerman 25.3 and 17.5 blood units were ordered per 1000 habitants of the total regional population from blood transfusion centers . Discussion: It can be concluded that none of the above methods alone is an exact and correct estimate for the required blood of the country and Iranian Blood Transfusion Organization (IBTO) should embark on this estimation by considering the population of any region, the available active hospital beds, the program for the increase of the number of beds, the number of special patients, and the activity of Plasma Research and Fractionation Center. Hence, due to the results of this study, it is recommended that the volume of blood collections increase from approximately 1,400, 000 at present to approximately 1, 781, 500.