One-third of prescriptions prescribed by a pediatric emergency department (PED) are not filled by patients. Fill rates improve with an onsite outpatient pharmacy (OOP). We aimed to increase the percent of PED discharge prescriptions sent to the OOP during open hours from 8.9% to 70% by June 2022. A team of PED providers and pharmacists was formed in early July 2021 to develop a key driver diagram. Retrospective baseline data were obtained from January 2019 to June 2021. Weekly data were then followed prospectively. Statistical process control charts were used to analyze data. Key interventions included an education campaign, electronic medical record modifications to the preferred pharmacy, and implementing on-shift project champions. The primary outcome was the percentage of prescriptions sent to the OOP from the PED during open pharmacy hours. The process measure of unfilled prescriptions at the OOP was also assessed. Baseline OOP utilization was 8.9%. Interventions, including modifying the preferred pharmacy settings, fellow champions, and provider feedback, led to 3 centerline shifts with a peak mean of 70.9% that was sustained for 9 months before decreasing slightly to 60%. As prescriptions being sent to the OOP pharmacy increased, the percent of unfilled prescriptions at the OOP was maintained at a rate of 15.8%. Quality improvement methodology was associated with a sustained increase in prescriptions sent to the OOP and a maintained rate of unfilled prescriptions, which supported the expansion of OOP hours of operation.
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