Examkin

Soru

Zorluk: ZorPatient Safety and Quality Improvement

A 72-year-old woman is admitted to the cardiac intensive care unit with a non-ST-segment elevation myocardial infarction. The physician orders a continuous intravenous infusion of unfractionated heparin at 1,000 units/hour. Two hours later, the patient develops severe epistaxis and hematemesis. Stat laboratory results show an activated partial thromboplastin time of >150 seconds. A root cause analysis reveals that the nurse manually programmed the infusion pump, accidentally typing the numeric value '1000' into the pump's 'mL/hour' field instead of the required 'units/hour' parameter. This resulted in a massive, rapid overdose. The hospital's quality improvement committee is tasked with implementing an intervention to prevent similar transcription and programming errors in the future. According to the hierarchy of intervention effectiveness, which of the following is the most robust strategy to mitigate this type of error?

  1. Integrating the electronic health record directly with the infusion pumps to automatically populate dosing parametersCevap
  2. B
    Requiring two independent nurses to cross-check and sign off on all high-alert medication pump settings before initiation
  3. C
    Enforcing a mandatory annual competency module on safe infusion pump programming for all critical care staff
  4. D
    Placing high-visibility fluorescent warning placards on all heparin intravenous bags reminding staff to verify the programming units
  5. E
    Terminating the employment of the involved staff member to uphold a strict standard for high-alert medication administration

Cevap

Integrating the electronic health record directly with the infusion pumps to automatically populate dosing parameters
The correct answer demonstrates the application of the Hierarchy of Intervention Effectiveness. In quality improvement and human factors engineering, interventions are ranked based on their reliability. The strongest interventions physically prevent the error (forcing functions) or remove the human element from the vulnerable step (automation/computerization). By integrating the electronic health record directly with the smart infusion pumps, the system automatically populates the exact dose and units prescribed. This completely eliminates the need for manual transcription, which was the root cause of the error. Weak interventions, on the other hand, rely on human vigilance, memory, and compliance.

Adım Adım Çözüm

1
Identify the primary mechanism of the adverse event from the vignette.
The error occurred because a human was required to manually transcribe and enter numerical data from the order into the infusion pump, leading to a slip (typing in the wrong field).
Understanding the exact failure mode is required to select an appropriately targeted systemic intervention.
2
Analyze the proposed solutions using the Hierarchy of Intervention Effectiveness.
The hierarchy ranks interventions from strongest (forcing functions, automation, computerization) to weakest (rules, policies, education, signs, punitive actions).
Quality improvement principles state that interventions relying less on human memory and vigilance are more effective at preventing harm.
3
Select the option that offers the strongest systemic protection.
Integrating the electronic health record (EHR) with the pumps (automation) removes the manual transcription step entirely, providing the highest level of reliability.
Automation addresses the root cause directly by bypassing the vulnerable human-machine interface step.

Anahtar Kavram

Hierarchy of Intervention Effectiveness in Patient Safety
Bu soruyu puanla

Konular

Patient Safety and Quality Improvement

Bu konudan daha fazla soru