Objective: Pro re nata (PRN; “as needed”) medication orders for hospitalized patients offer clinical convenience. Nevertheless, short dosing intervals and dosages that, when combined with long-term medications, exceed the maximum daily dose may pose considerable risks to patient safety.
Methods: A problem-solving model was used to identify four root causes of PRN medication risks to patient safety: the use of the same dosing process for PRN and long-term medication orders, the lack of a mechanism to assess intervals between PRN medication administrations, insufficient reminders to ensure the completion of records following PRN medication administration, and the absence of a system to monitor the total dosage administered from PRN medication orders.
Results: The nursing administration error rate for inpatient PRN medication orders was 0.85% prior to the improvements, with a zero-tolerance policy for errors, aiming to reduce it to 0%. After the improvements, the error rate successfully dropped to 0%. The PRN medication order dosing process was revamped to streamline procedures by removing nonessential steps. Additionally, the return rate for inpatient PRN medications declined from 87.7% to 3.6%, reducing tangible bag printing costs and intangible operational expense.
Conclusion: The project yielded satisfactory results and has been promoted across all hospitals within the system for continuous optimization and refinement. Information verification and process streamlining are utilized to enhance healthcare quality.