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Difficulty: HardHuman Factors and Cognitive Biases

A 54-year-old woman is admitted to the general medical ward for community-acquired pneumonia. On hospital day 2, she develops acute agitation, diaphoresis, and tachycardia (120/min). The cross-cover night physician receives a page from the nurse stating, "The patient in room 412 is getting restless and her heart rate is up." The physician quickly reviews the electronic health record, notes a prominent "Alcohol Use Disorder" entry in her past medical history, and immediately concludes the patient is in alcohol withdrawal. Without performing a bedside evaluation or reviewing the recent vital signs (which showed a new fever of 39.2°C and blood pressure of 85/50 mmHg), the physician orders high-dose intravenous lorazepam. Two hours later, the patient requires transfer to the intensive care unit for septic shock secondary to an expanding empyema.

During the subsequent morbidity and mortality conference, a root cause analysis is performed to identify the cognitive errors made and to propose durable, system-level human factors engineering solutions.

Which of the following statements correctly pair a cognitive error demonstrated in this case with an effective, strong system-level mitigation strategy? (Select the 2 correct answers)

  1. Anchoring bias; integrating a clinical decision support system that forces review of full vital signs before prescribing high-dose sedativesAnswer
  2. Premature closure; standardizing a cross-cover handoff protocol that requires the primary team to document specific contingency plans for high-risk patientsAnswer
  3. C
    Availability heuristic; mandating that cross-cover physicians complete annual continuing medical education on the varied presentations of inpatient sepsis
  4. D
    Confirmation bias; instituting a hospital policy requiring bedside nurses to question the physician's diagnostic reasoning before administering psychotropic drugs
  5. E
    Framing effect; implementing a punitive peer-review tracking system for physicians who prescribe intravenous sedatives without a documented in-person assessment

Answer

The correct pairings are Anchoring bias with integrating a clinical decision support system, and Premature closure with standardizing a cross-cover handoff protocol.
The correct answers accurately identify the cognitive errors present in the clinical scenario and pair them with strong, system-level human factors engineering interventions. The physician demonstrated anchoring bias by fixating on the patient's history of alcohol use disorder, and premature closure by accepting this diagnosis without verifying recent vital signs or considering life-threatening alternatives like sepsis. In the hierarchy of human factors interventions, forcing functions (such as an EHR hard stop requiring vital sign review) and standardization (such as a structured cross-cover handoff protocol with contingency plans) are highly effective because they fundamentally change the system to prevent error, rather than relying on human vigilance or memory.

Step-by-Step Solution

1
Identify the cognitive errors made by the cross-cover physician.
The physician fixated on the alcohol history (anchoring bias) and stopped the diagnostic process before considering other causes or checking vitals (premature closure).
Recognizing the specific heuristics used is required to select the correct bias-intervention pairings and eliminate distractors.
2
Evaluate the proposed human factors engineering interventions for their effectiveness.
Forcing functions (e.g., EHR hard stops) and standardization (e.g., structured handoff protocols) are strong system-level mitigations. Education, new policies, and punitive measures are weak interventions.
High-reliability organizations prioritize system redesign over relying on human vigilance or memory to prevent errors.
3
Select the options that correctly pair a demonstrated cognitive bias with a strong system-level intervention.
The options pairing anchoring bias with an EHR forcing function and premature closure with a standardized handoff protocol are the only correct combinations.
These options correctly identify the errors present in the scenario and propose effective, durable mitigation strategies.

Key Concept

Human Factors Engineering and Cognitive Biases
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Topics

Human Factors and Cognitive Biases

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