A 3-year-old girl was admitted to the paediatric ward.
She presented with a 24-hour history of fever, poor oral intake, and increasing lethargy, which rapidly progressed to meningococcal sepsis requiring intensive care and resulted in a significant adverse outcome. Initial observations included a temperature of 39.5 °C, heart rate 160 bpm, and capillary refill time of 4 seconds.
As the consultant in charge, you are now chairing a Root Cause Analysis meeting to investigate a potential delay in diagnosis. The quality improvement team elects to use an Ishikawa (Fishbone) diagram.
What is the primary purpose of employing this diagrammatic tool during the investigation?
CORRECT ANSWER:
The primary purpose of the Fishbone (Ishikawa) diagram in a Root Cause Analysis (RCA) is to systematically brainstorm and categorize all potential contributory factors that may have led to an adverse event.
In the context of a delayed sepsis diagnosis, this quality improvement tool provides a structured framework to explore various domains, ensuring a comprehensive and holistic analysis. National patient safety guidance encourages moving away from individual blame towards a systems-based approach.
The diagram's branches typically represent categories such as People (e.g., training, staffing levels), Procedures (e.g., clinical guidelines, communication pathways), Equipment (e.g., availability of monitoring devices), and Environment (e.g., ward layout, workload). By visually mapping out these potential causes, the RCA team can identify systemic vulnerabilities and develop targeted interventions to improve patient safety and prevent future occurrences, aligning with the principles of clinical governance and continuous quality improvement.
WRONG ANSWER ANALYSIS:
Option A (To assign blame to individuals) is incorrect because modern patient safety culture, endorsed by NHS England and the RCPCH, promotes a non-punitive, 'just culture' approach to RCA, focusing on system failures rather than individual errors.
Option B (To construct a chronological timeline) is incorrect as this is the function of a different RCA tool, typically a timeline or sequence of events analysis, which precedes the cause-and-effect investigation.
Option D (To calculate the financial cost) is incorrect because the Fishbone diagram is a qualitative tool for identifying causes, not a quantitative tool for financial impact analysis.
Option E (To write the final apology letter) is incorrect as this is a separate, albeit important, part of the duty of candour and overall incident management process, which occurs after the analysis is complete.