RT Journal Article SR Electronic T1 Optimizing Radiopharmaceutical Utilization: The Shortage-Outdating Operating Curve JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 88 OP 90 VO 7 IS 2 A1 Levine, Geoffrey A1 Carroll, Robert A1 Nahmias, Steven YR 1979 UL http://tech.snmjournals.org/content/7/2/88.abstract AB An inventory model—optimizing radiopharmaceutical utilization and providing the user with a family of curves with which to estimate both waste and service levels—is proposed. Percent of wasted supply compared with percent of unsupplied demand was calculated for I-131 and for I-123 as a function of the number of capsules placed on standing order. These operating curves represent analysis of actual patterns of use in our central radiopharmacy. Individual patient’s radiopharmaceutical dose cost obviously includes the cost of unused standing order supplies. The actual dollar cost of operating differing levels of unmet demand can be easily determined.