Cumulative sum control charts for admixture quality control
Sanford, R.L.
American Journal of Hospital Pharmacy 37(5): 655-659
1980
ISSN/ISBN: 0002-9289 PMID: 7386472 Document Number: 157621
The use of cumulative sum control charts as a means of monitoring the sterility of i.v. admixtures produced by a centralized service is discussed. To create a sum control chart, acceptable and rejectable quality levels must be determined. Frequency of sampling will determine responsiveness and can be varied to affect the length of time necessary to detect an unacceptable shift in product quality. Cumulative sum control charts allow monitoring to be performed on a cost vs. benefit basis, and can be used to provide a basis for action on production of existing product and to maintain or improve product quality in the future.