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Difficulty: MediumRoot Cause Analysis and Error Investigation

A 62-year-old woman is admitted to the telemetry unit for management of a pulmonary embolism. She is prescribed a continuous intravenous heparin infusion. During the evening shift change, a miscommunication occurs between the outgoing and incoming nurses regarding the timing of her next partial thromboplastin time (PTT) check and dosage adjustment. Later that night, a nurse calculates the infusion rate incorrectly and programs the intravenous pump. The patient receives a massive overdose of heparin and subsequently develops gastrointestinal bleeding. She is stabilized after the administration of protamine sulfate and supportive care. The hospital's quality improvement committee is tasked with evaluating this sentinel event to prevent future occurrences. Which of the following is the most appropriate next step in the evaluation of this incident?

  1. A
    Perform a proactive failure mode and effects analysis on the intravenous pump programming process
  2. B
    Terminate the investigation after identifying the nurse's mathematical calculation as the primary cause
  3. Assemble a multidisciplinary team to conduct a retrospective root cause analysisAnswer
  4. D
    Implement a standardized electronic handoff tool immediately prior to further analysis of the event
  5. E
    Attribute the event to inattention and mandate that the involved staff complete a cognitive bias training module

Answer

Assemble a multidisciplinary team to conduct a retrospective root cause analysis
The correct answer identifies the initiation of a Root Cause Analysis (RCA). When a sentinel event occurs (such as a massive medication overdose leading to severe bleeding), the standard of care in hospital quality improvement is to perform an RCA. This is a retrospective process that utilizes a multidisciplinary team to map the event timeline, identify both active human errors and latent system vulnerabilities, and ultimately develop a strong action plan to prevent recurrence. It avoids assigning individual blame and instead focuses on system redesign.

Step-by-Step Solution

1
Analyze the clinical scenario and the outcome.
A severe adverse event (heparin overdose causing bleeding) occurred due to multiple sequential failures, including communication breakdown and calculation errors.
Recognizing this as a sentinel event dictates that a formal, standardized evaluation process must be utilized by the hospital.
2
Identify the correct quality improvement framework.
Because the event has already reached the patient and caused harm, a retrospective analysis of the systems involved is required.
Root Cause Analysis (RCA) is the standard method for retrospectively investigating sentinel events to uncover latent errors, whereas FMEA is used prospectively.
3
Evaluate the proposed options against patient safety methodologies.
The most appropriate next step is to convene a multidisciplinary team for an RCA, avoiding premature closure, prospective tools, or punitive measures.
This aligns with established just culture principles, ensuring all systemic contributing factors are evaluated before implementing corrective actions.

Key Concept

Root Cause Analysis (RCA) is a retrospective, multidisciplinary process used to investigate sentinel events and identify latent system errors, distinct from prospective tools like Failure Mode and Effects Analysis (FMEA).
Estimated Time:1m 30s
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Topics

Root Cause Analysis and Error Investigation

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