Inventory Management of Gauze Set : A Case Study

Abstract

This research is aimed at inventory modeling of gauze-set preparation at Central SterileSupply Department (CSSD) of Srinakarind Hospital. By comparing the statistics of the gauze setusage by Pareto diagram, it was found that the 3"x 3" gauze set usage per month was the highest inboth quantity and value. Therefore the 3"x 3" gauze set was selected for this study. Distribution testsof the statistics of the 3"x 3" gauze set usage revealed that it had normal distribution. The demand ofthe 3"x 3" gauze set was forecast by using the QSB+program version 2.1. The single ExponentialSmoothing method with alpha equal to 0.787 was adopted as the forecast model because it yieldedthe minimum square error. The forecast model was used to predict the most economic productionquantity (EPQ), ordering period and ordering frequency. From this study, the results show that theCSSD can reduce the average holding cost and ordering cost during December 2005 to March 2006.The savings amount to 88.72 baht per month or 51.20 percent lower than the present working system.