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Difficulty: HardRoot Cause Analysis and Error Investigation

A 45-year-old man undergoes an uncomplicated outpatient laparoscopic cholecystectomy. Upon discharge, the surgeon uses the electronic health record (EHR) to prescribe oral hydromorphone for pain management. However, the EHR interface defaults to a continuous intravenous infusion order set for this medication. The surgeon overrides a generic warning alert without reading it, assuming it to be a routine nuisance alarm. The outpatient pharmacy receives the order, assumes it is meant to be a concentrated liquid formulation, and dispenses it to the patient with oral dosing instructions. The patient subsequently suffers a massive overdose, resulting in respiratory arrest at home that requires emergency intubation. A multidisciplinary patient safety committee is convened to review the incident. The committee identifies the EHR default setting and the surgeon's alert fatigue as primary contributing factors. Which of the following is the most appropriate next step for the committee to recommend?

  1. Implement a forcing function within the EHR that physically prevents the authorization of continuous intravenous opioid infusions for outpatient discharge prescriptionsAnswer
  2. B
    Transition the investigation into a failure mode and effects analysis to retrospectively determine how the EHR interface error originally occurred
  3. C
    Conclude the analysis and report the findings, as the physician's unread alert override represents the definitive root cause of the adverse event
  4. D
    Address the alert fatigue by replacing the generic warning with a high-priority interruptive alert specifically detailing absolute pharmacologic contraindications to hydromorphone
  5. E
    Mandate the use of a standardized verbal handoff protocol between the discharging physician and the outpatient dispensing pharmacist for all high-risk medications

Answer

Implement a forcing function within the EHR that physically prevents the authorization of continuous intravenous opioid infusions for outpatient discharge prescriptions.
The most effective way to prevent a recurrence of this specific medication error is to implement a forcing function, such as a hard stop in the EHR. In the hierarchy of safety interventions, forcing functions represent the highest and most effective tier because they do not rely on human memory, vigilance, or behavior modification. By logically preventing the selection of an inappropriate continuous intravenous formulation for an outpatient, the latent system error is entirely eliminated, protecting future patients regardless of physician fatigue or distraction.

Step-by-Step Solution

1
Identify the nature of the investigation.
The committee is conducting a Root Cause Analysis (RCA) following a sentinel event to identify underlying system vulnerabilities.
An adverse event has already occurred, necessitating a retrospective analysis rather than a prospective risk assessment.
2
Analyze the identified contributing factors.
The primary contributors (EHR defaults, alert fatigue) are latent system errors, while the alert override is the active error.
Effective error investigation must look beyond the individual practitioner at the 'sharp end' to address the environmental and technological factors at the 'blunt end'.
3
Apply the hierarchy of safety interventions to select the best recommendation.
A forcing function (hard stop) is selected as the most appropriate next step.
In the hierarchy of safety controls, forcing functions and automation are the strongest interventions because they logically or physically prevent an error from reaching the patient, without relying on human memory or vigilance.

Key Concept

Hierarchy of safety interventions and Root Cause Analysis (RCA)
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Topics

Root Cause Analysis and Error Investigation

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