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Zorluk: ZorClassification of Medical Errors and Adverse Events

A 62-year-old man is brought to the emergency department with acute-onset right-sided weakness and expressive aphasia. The emergency physician rapidly diagnoses an acute ischemic stroke. Focused on meeting the hospital's strict door-to-needle time metrics, the physician does not consider stroke mimics. The physician orders intravenous alteplase but fails to elicit a history of a major partial colectomy performed 12 days ago. The hospital's electronic health record stroke order set does not include a mandatory checklist for thrombolytic contraindications. Alteplase is administered, and the emergency physician decides to admit the patient to a general medical-surgical floor to expedite transfer out of the emergency department. Four hours later, the patient becomes unresponsive, and a head CT reveals a massive intracranial hemorrhage. The patient dies the following day. A hospital committee reviews the incident by employing a Failure Mode and Effects Analysis to investigate how the patient's death occurred.

Which of the following aspects of this case represents a latent error?

  1. The absence of a mandatory checklist for thrombolytics in the electronic health recordCevap
  2. B
    The physician terminating the diagnostic evaluation after suspecting an ischemic stroke
  3. C
    The administration of alteplase despite the patient's recent major abdominal surgery
  4. D
    The physician's decision to admit the patient to a general medical-surgical floor
  5. E
    The committee utilizing Failure Mode and Effects Analysis to investigate the patient's death

Cevap

The absence of a mandatory checklist for thrombolytics in the electronic health record represents a latent error.
Latent errors refer to underlying system, environmental, or organizational design flaws that create conditions in which errors are more likely to occur. In James Reason's Swiss Cheese model, these represent the 'blunt end' of healthcare delivery. The lack of a mandatory electronic health record checklist is a system design vulnerability that facilitated the physician's active error of missing the contraindication. Had the system been designed with a hard-stop checklist, the active error likely would have been intercepted before harm reached the patient.

Adım Adım Çözüm

1
Differentiate between active and latent errors in patient safety taxonomy.
Active errors occur at the 'sharp end' (frontline personnel) and have immediate effects. Latent errors occur at the 'blunt end' (system, organizational, or environmental design) and lie dormant until combined with active errors.
Correctly classifying the error type requires understanding James Reason's Swiss Cheese model of accident causation.
2
Analyze each option to determine if it describes a frontline failure (active) or a system vulnerability (latent).
The diagnostic closure, medication administration, and patient disposition were all frontline decisions (active errors). The choice of QI methodology was a procedural mistake by the committee.
Systematic evaluation separates individual cognitive or procedural failures from underlying system flaws.
3
Identify the system-level design flaw.
The missing electronic health record checklist is an organizational design flaw that failed to prevent the physician's active error.
Electronic health record interfaces are designed by the system/organization, placing them at the blunt end of patient care.

Anahtar Kavram

Latent errors are system-level vulnerabilities (blunt end) that create conditions allowing active errors (sharp end) to reach the patient. Active errors are committed by frontline healthcare personnel.
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Classification of Medical Errors and Adverse Events

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