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Zorluk: OrtaRoot Cause Analysis and Error Investigation

A multidisciplinary patient safety committee is reviewing a sentinel event where a patient erroneously received an intravenous medication via an epidural route. During the root cause analysis, the team maps out the sequence of events and brainstorms corrective actions. Match each identified contributing factor or proposed intervention to its correct classification in the error taxonomy and hierarchy of safety controls.

  • An anesthesiologist mistakenly connects an intravenous antibiotic syringe to an epidural port during a high-stress, rapidly deteriorating clinical situation.Active error (sharp-end failure)
  • The hospital supply chain committee approved the purchase of neuraxial and intravenous tubing that share universal, interchangeable Luer-lock connection mechanisms.Latent error (blunt-end vulnerability)
  • The facility implements specialized neuraxial connectors (NRFit) that are physically incompatible with standard intravenous syringes.Strong intervention (forcing function)
  • The department requires a mandatory annual computer-based training module on medication administration safety for all clinical staff.Weak intervention (administrative control)

Cevap

Anesthesiologist misconnection is an active error; universal Luer-lock purchasing is a latent error; NRFit incompatible connectors are a strong intervention (forcing function); and mandatory annual modules are a weak intervention (administrative control).
Effective error investigation requires accurately mapping failures to their appropriate systemic levels. Active errors occur at the sharp end by frontline staff. Latent errors reside at the blunt end, such as poor purchasing decisions or confusing protocols. When correcting vulnerabilities, strong interventions (forcing functions) change the physical environment to make errors impossible, while weak interventions (training, signs, policies) rely on fallible human memory and are prone to failure under stress.

Adım Adım Çözüm

1
Analyze the incident timeline to distinguish between proximal human actions and underlying systemic conditions.
The physician's misconnection is identified as the immediate active error, while the hospital's procurement of interchangeable tubing is identified as the latent systemic vulnerability.
Root cause analysis requires differentiating between the 'sharp end' (frontline personnel) and the 'blunt end' (system policies and design) to implement effective changes.
2
Evaluate the proposed corrective actions based on the National Institute for Occupational Safety and Health (NIOSH) hierarchy of controls.
Physical incompatibility of connectors is classified as a strong forcing function, whereas additional training is classified as a weak administrative control.
System redesigns that remove the physical possibility of an error are far more protective than interventions that rely on human vigilance and memory.

Anahtar Kavram

Classification of active versus latent errors and the hierarchy of patient safety interventions.
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Konular

Root Cause Analysis and Error Investigation

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