Modeling package size-conscious automated dispensing cabinet replenishment to improve efficiency.

DISCLAIMER: In an effort to expedite the publication of articles, AJHP is posting manuscripts online as soon as possible after acceptance. Accepted manuscripts have been peer-reviewed and copyedited, but are posted online before technical formatting and author proofing. These manuscripts are not the final version of record and will be replaced with the final article (formatted per AJHP style and proofed by the authors) at a later time. PURPOSE: Optimization of automated dispensing cabinets (ADCs) has traditionally focused on modifying the inventory within these devices and ignored the replenishment process itself. Rounding replenishment quantities to the nearest package size, termed package size-conscious replenishment (PSCR), was investigated as a way to optimize labor needs for ADC replenishment. METHODS: A simulation of PSCR for a subset of medications stocked in ADCs at the University of North Carolina Medical Center was conducted. The simulation utilized real-world vend data and rounding factors to model the impact of PSCR on key ADC metrics. The final simulation utilized 2 months of ADC transactions across 410 medications in 149 ADCs. Four replenishment methodologies were simulated: standard replenishment and 3 PSCR strategies, including rounding down, rounding any direction, and rounding up. RESULTS: All 3 PSCR methodologies had significantly lower stockout frequencies than standard replenishment at 0.722% (P = 0.026) for rounding down, 0.698% (P = 0.024) for rounding any direction, and 0.680% (P = 0.024) for rounding up vs 0.773% for standard replenishment. PSCR methods were associated with significant time savings for both technician and pharmacist activities (P < 0.001 for all 3 strategies), with a savings of up to 0.27 technician and 0.52 pharmacist full-time equivalents estimated for the rounding-up methodology. Maximum carrying cost was higher for all 3 PSCR methodologies. CONCLUSION: PSCR was modeled to significantly decrease both pharmacist and technician time needed to replenish ADCs while also decreasing stockout frequency. Modest increases in maximum carrying cost were also shown. The simulation created for this evaluation could also be utilized to model other components of the ADC replenishment process.

Assessment of Electrolyte Replacement in Critically Ill Patients During a Drug Shortage.

Purpose: The purpose of this study was to determine if national drug shortages of electrolyte replacement products negatively impact patient care. Methods: This study was a single-center, retrospective, observational cohort of adults admitted to the medical, surgical, or trauma intensive care unit (ICU) that were ordered or would have qualified for the general or continuous renal replacement therapy electrolyte replacement protocol (ERP) between April 2017 and August 2018. In October 2017, ERP use was suspended and enteral replacement was promoted due to inability to maintain consistent inventory of intravenous replacement products. The primary objective was to compare the percentage of patient days that at least 1 critically low value of potassium, magnesium, and/or phosphorus existed between protocolized and nonprotocolized electrolyte replacement. Secondary objectives included characterizing the ratio of enteral replacement to duration of critically low electrolyte values during protocolized and nonprotocolized electrolyte replacement. Results: A total of 288 patients were included. The mean percentage of ICU days with low electrolyte levels in the protocolized period was significantly higher than in the nonprotocolized period (21.4% vs 17.5%, P = .0238). There was a negative relationship between the total electrolyte replacement that was given enterally and the percentage of patient days with critically low values indicating that as enteral replacement increased, percentage of days with low values decreased. The association between percentage of enteral replacement and days with critically low electrolyte values was significantly lower in the protocolized period. Conclusion: Intravenous electrolyte replacement product shortages did not result in an increased incidence of critically low electrolyte values. Enteral replacement was associated with a decreased incidence of low electrolyte values.

Determining the Need for Standardized Infusions and Concentrations at Hospitals within North Carolina.

Background: In 2013, the American Society of Health-System Pharmacists (ASHP) endorsed a policy recommending the development of nationally standardized drug concentrations and dosing units. Although many hospitals have started standardizing their intravenous (IV) solutions, few have taken the practice beyond their institutions or local geographical areas. Objective: This project evaluates the current IV standardization practices for adult patients across hospitals in North Carolina and compares them with each other. In addition, this project proposed standards and evaluated them for their impact on reducing observed variability. Methods: In the fall of 2013, an e-mail request was sent to select hospital pharmacy leaders in North Carolina asking them to voluntarily submit a copy of their adult IV standard concentrations and dosing guidelines. From these lists, the data were summarized and compiled to evaluate trends and compare the various policies. Results: A total of 18 different hospitals and health systems responded. Survey results showed more than 255 concentrations for 84 unique drugs. Of these, 37 were high-risk medications, with 135 unique drug concentrations. From this list, a single proposed concentration was developed for each medication. If utilized, this standardization would result in a greater than 65% reduction in potential drug concentrations in use. A single dosing unit was also proposed for all medications reviewed, resulting in a greater than 21% reduction in variation. Conclusions: Standardization of IV drug concentrations and dosing units statewide could reduce the variability in IV therapies and promote safer and more consistent practices in medication administration.

Significant Publications About the Medication Use Process in 2012.

PURPOSE: This article identifies, prioritizes, and summarizes the published literature on the medication use process (MUP) from calendar year 2012 that can impact health-system pharmacists' daily practice. SUMMARY: The MUP is the foundational system that provides the framework for safe patient care within the health care environment. The MUP is defined in this article as having the following components: prescribing/transcribing, dispensing, administration, and monitoring. A PubMed search was conducted in January 2013 for calendar year 2012 using targeted Medical Subject Headings (MeSH) keywords, providing a total of 944 articles. A thorough review identified 46 potentially significant articles: 14 for prescribing/transcribing, 12 for dispensing, 10 for administration, and 10 for monitoring. Peer review led to the selection of key articles from each category. These articles are briefly summarized, with a mention of why this article is important within health-system pharmacy. The other articles are listed for further review and evaluation. CONCLUSION: It is important to routinely review the published literature and to incorporate significant findings into daily practice. Health-system pharmacists have an active role in improving the MUP in their institution and awareness of the significant published studies can assist in changing practice at the institutional level.

Economic and microbiologic evaluation of single-dose vial extension for hazardous drugs.

PURPOSE: The update of US Pharmacopeia Chapter <797> in 2008 included guidelines stating that single-dose vials (SDVs) opened and maintained in an International Organization for Standardization Class 5 environment can be used for up to 6 hours after initial puncture. A study was conducted to evaluate the cost of discarding vials after 6 hours and to further test sterility of vials beyond this time point, subsequently defined as the beyond-use date (BUD). METHODS: Financial determination of SDV waste included 2 months of retrospective review of all doses prescribed. Additionally, actual waste log data were collected. Active and control vials (prepared using sterilized trypticase soy broth) were recovered, instead of discarded, at the defined 6-hour BUD. RESULTS: The institution-specific waste of 19 selected SDV medications discarded at 6 hours was calculated at $766,000 annually, and tracking waste logs for these same medications was recorded at $770,000 annually. Microbiologic testing of vial extension beyond 6 hours showed that 11 (1.86%) of 592 samples had one colony-forming unit on one of two plates. Positive plates were negative at subsequent time points, and all positives were single isolates most likely introduced during the plating process. CONCLUSION: The cost of discarding vials at 6 hours was significant for hazardous medications in a large academic medical center. On the basis of microbiologic data, vial BUD extension demonstrated a contamination frequency of 1.86%, which likely represented exogenous contamination; vial BUD extension for the tested drugs showed no growth at subsequent time points and could provide an annual cost savings of more than $600,000.

Effects of a new sterile product preparation and delivery process on operational efficiency and cost.

PURPOSE: Process changes in a hospital pharmacy's batch preparation of sterile products to reduce product and human resource waste are described. SUMMARY: The pharmacy information system and direct observation were used in the collection of data on the existing i.v. room process, which generated batches of drug products every 12 hours. The daily numbers of doses prepared and doses credited, the percentage of doses credited, the cost of wasted doses, and the number of pharmacy technician hours wasted in the process were recorded. After a change to every-4-hour batch preparation and a modification of the schedule for delivering products to nursing units, data were again collected to determine savings of waste and costs. Fewer doses were prepared daily in the new batch process. The percentage of doses credited daily decreased from 26% to 18%, and pharmacy technician workload decreased by 3.05 hours. The reductions in waste led to a projected annual product cost saving of $122,000 and a workload reduction of 0.5 technician full-time equivalent. CONCLUSION: The implementation of a new i.v. room batch process improved operational efficiency by reducing the production of waste and led to a substantial projected annual cost saving.