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Difficulty: Very hardClassification of Medical Errors and Adverse Events

A 32-year-old primigravida at 38 weeks gestation is admitted to the labor and delivery unit for induction of labor due to preeclampsia with severe features. A continuous intravenous magnesium sulfate infusion is initiated for seizure prophylaxis. During the evening shift change, the departing nurse is urgently called to assist with a fetal deceleration in an adjacent room before completing a standardized bedside handoff. The incoming nurse assumes the patient's baseline deep tendon reflexes (DTRs) were recently checked and documented. Three hours later, the patient develops profound bradypnea and absent DTRs. Prompt administration of intravenous calcium gluconate reverses the patient's symptoms. A subsequent safety investigation reveals two key findings: the smart infusion pump library was inadvertently patched with a default loading dose rate instead of a maintenance rate, and the electronic health record (EHR) features a mandatory alert to check DTRs every 2 hours that only appears on the interface of the clinician who initially scanned the medication barcode.

Which of the following best classifies the EHR alert design flaw in this patient's care sequence?

  1. Latent errorAnswer
  2. B
    Active error
  3. C
    Sentinel event
  4. D
    Near miss
  5. E
    Unpreventable adverse event

Answer

Latent error
The EHR alert design flaw represents a latent error (or latent condition). Latent errors occur at the 'blunt end' of patient care; they are systemic vulnerabilities built into equipment design, software architecture, organizational policies, or physical environments. These flaws can remain dormant for long periods until a specific combination of circumstances—in this case, a shift change and a busy clinical environment—allows the vulnerability to propagate through the system and cause patient harm. Differentiating latent errors from the actions of frontline clinicians is critical for performing an effective Root Cause Analysis.

Step-by-Step Solution

1
Analyze the clinical incident to identify the different types of failures that occurred.
Identified failures include incomplete handoff (human), assumption of prior vitals check (human), incorrect pump library patch (system), and restrictive EHR alert design (system).
Deconstructing the event is necessary to differentiate between sharp-end human actions and blunt-end system vulnerabilities.
2
Isolate the specific element queried in the question stem.
The question asks specifically to classify the EHR alert design flaw, not the nurses' actions or the overall patient outcome.
Focusing on the queried element prevents selection of distractors that correctly describe other parts of the vignette.
3
Apply standard medical error taxonomy to the isolated element.
The EHR flaw is a condition built into the hospital's infrastructure that created a vulnerability, which was unmasked by the shift change. This matches the definition of a latent error.
Latent errors refer to underlying system, process, or design flaws that facilitate active errors or adverse events.

Key Concept

Latent errors are systemic, blunt-end vulnerabilities designed into healthcare processes, infrastructure, or technology that lie dormant until unmasked by a specific combination of circumstances, distinguishing them from active errors committed by frontline personnel.
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Topics

Classification of Medical Errors and Adverse Events

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