Root Cause Analysis for Laboratories

Quality team conducting a root cause analysis with flowcharts and diagrams

Last updated: 2025

What Is Root Cause Analysis (RCA)?

Root Cause Analysis (RCA) is a structured approach to identifying the underlying causes of errors, incidents, or nonconformities. Rather than focusing on individual mistakes, RCA looks at system-level factors that allowed the issue to occur.

When Should Laboratories Use RCA?

  • Significant patient safety events or near-misses.
  • Repeated or recurring quality issues.
  • Serious regulatory or accreditation deficiencies.
  • Complex incidents involving multiple departments.

Common RCA Techniques

  • 5 Whys: Asking “why” repeatedly to uncover deeper causes.
  • Fishbone (Ishikawa) Diagrams: Categorizing potential causes (people, process, equipment, environment, etc.).
  • Process Mapping: Visualizing workflows to identify breakdown points.
  • Failure Mode and Effects Analysis (FMEA): Proactively identifying potential failure modes.

Steps in a Laboratory RCA

  1. Define the problem clearly (what happened and impact).
  2. Gather data (records, interviews, logs, QC, etc.).
  3. Map the process and identify contributing factors.
  4. Use RCA tools to determine the root causes.
  5. Develop and implement corrective and preventive actions.
  6. Monitor outcomes to verify effectiveness.

RCA Documentation in mylabcompliance.io

mylabcompliance.io supports RCA workflows by:

  • Providing structured forms to document incidents and RCAs.
  • Allowing attachment of supporting evidence (reports, images, logs).
  • Linking RCAs to CAPA records and responsible owners.
  • Displaying trends across RCAs to identify systemic issues.

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