What is a root cause analysis (RCA) and how is it used after a medication error?

• A. A systematic investigation to identify underlying system factors causing the error, with actions to prevent recurrence.
• B. A casual discussion among staff after an incident.
• C. A quarterly audit of medication labels.
• D. A medical chart review performed after discharge.

Answer: (A)

Root cause analysis is a structured, systematic investigation that aims to uncover the underlying system factors that allowed a medication error to occur, and it leads to actions designed to prevent recurrence. After an error, RCA shifts the focus from blaming an individual to examining processes, tools, policies, communication, and the environment that contributed to the mistake. A multidisciplinary team collects data, maps how the medication flowed through prescribing, dispensing, and administration, and uses methods to identify root causes and contributing factors. The goal is to implement changes—such as redesigning workflows, updating technology, enhancing training, or adding safeguards—and then monitor whether those changes reduce the likelihood of similar errors in the future.

Casual discussions lack the rigor and documentation needed to prevent recurrence. Routine checks like a quarterly audit of medication labels address specific safety topics but don’t analyze a particular error in depth. A chart review after discharge focuses on patient outcomes rather than diagnosing and correcting the systemic factors at fault during the medication process.