The Introduction of An Intravenous Fluid Bundle to Improve the Prescribing of Intravenous Fluids Within a District General Hospital (Preprint)

Abstract

Intravenous (IV) fluids are some of the most commonly prescribed day-to-day drugs. Evidence suggests that such prescriptions are rarely ever done correctly despite the presence of clear guidelines (NICE CG174). This is believed to be due to lack of knowledge and experience, which often breeds confusion and places patients at increased risk of harm. It also incurs avoidable costs to hospitals.

This quality improvement project (QIP) aims to ensure that IV fluid prescriptions are: safe, appropriate and adhere to evidence-based NICE guidance. The project’s aims will be achieved through implementing multiple interventions that are categorised under: educational, changing prescribing habits and raising awareness.

Review and improve the prescribing process of “IV fluid prescribing” via three simultaneous approaches.  Teaching sessions were delivered to all junior doctors in order to improve knowledge and awareness of appropriate IV fluid prescribing and promote familiarity with the current NICE IV fluid guidelines. This included a ‘feature session’ at our local hospital Grand Round. A point-of-care aide-memoire containing a summary of the information needed for correct prescription was designed and printed. This complimented the teaching sessions and supported good clinical practice. Using serial Plan-Do-Study-Act (PDSA) cycles, a novel “IV fluid bundle” was developed, fine-tuned and trialled on five wards, (three surgical, two medical). The aim of the bundle was to ensure that patients were clinically reviewed in order to assess their volaemic status in order that appropriate IV fluids could then be selected and prescribed safely. The impact of these interventions was assessed on the trial wards via a weekly point prevalence audit of the IV fluid bundles for the duration of the trial. Parameters looked at were: incidence of deranged U&E’s, incidence of AKI and the number of days between the latest U&E’s and the patient’s IV fluid prescription.

These interventions were assessed on trial wards via a weekly point prevalence audit of the new IV fluid prescription chart (bundle; IFB) for the duration of the trial. Parameters monitored were: incidence of deranged U&E’s, incidence of acute kidney injury (AKI) and the number of days between the latest U&E’s and the patient’s IV fluid prescription. Of all of the patients on the IV fluid bundle, 100% had a documented weight, review of both fluid status and balance. The incidence of deranged U&E’s decreased from 48% to 35%. Incidence of AKI decreased from 24% to 10%. The average number of days between the latest U&E’s and a fluid prescription decreased from 2.2 days to 0.6 day.

Prescribing IV fluids is a complex task that requires significant improvement both locally and nationally. With 85% uptake of the IFB, we were able to significantly improve all measured outcomes. Through carefully structured interventions geared towards tackling the confounding issues identified from previous audits and process mapping we have shown that prescribing IV fluids can be made safer.