A medical item tracking method including storing inventory levels of items which are for use in medical procedures and receiving input for reserving the use of a facility for a medical procedure, which medical procedure is projected to use at least one of the inventoried items. The input identifies at least one individual projected to participate in the medical procedure. The method further includes retrieving data relating to the predicted usage of the inventoried item in the medical procedure, wherein the data is based upon the participation of the at least one individual. The method further includes adjusting the levels of inventory based upon the retrieved predicted usage data.