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Zorluk: Çok zorRoot Cause Analysis and Error Investigation

A 4-month-old infant weighing 6 kg is admitted to the pediatric intensive care unit for treatment of gram-negative sepsis. The attending physician orders intravenous gentamicin at 2.5 mg/kg per dose. A decimal point error occurs during the manual calculation and compounding process in the central pharmacy, resulting in a syringe containing 150 mg of gentamicin instead of the intended 15 mg. The syringe is subsequently labeled as "Gentamicin 15 mg".

At the bedside, the nurse bypasses the barcode medication administration (BCMA) system because the scanner battery is depleted. The nurse assumes the physical volume is appropriate and administers the entire syringe. The infant survives but develops irreversible sensorineural hearing loss.

A multidisciplinary Root Cause Analysis (RCA) is convened. The committee identifies multiple vulnerabilities, including manual calculation requirements, inadequate pharmacy staffing, and faulty BCMA equipment on the ward.

When designing the corrective action plan, the committee must prioritize interventions based on the hierarchy of safety controls. Which of the following proposed interventions represents the most reliable, highest-leverage system change to prevent recurrence of this specific type of error?

  1. A
    Implementing a mandatory policy requiring two clinical pharmacists to independently calculate and verify all pediatric weight-based medication doses prior to compounding
  2. Procuring commercially prepared, standardized unit-dose syringes of high-risk pediatric medications to eliminate the need for manual compounding in the hospital pharmacyCevap
  3. C
    Configuring a hard-stop within the electronic health record that prevents nurses from bypassing the BCMA system without an explicit override from the attending physician
  4. D
    Initiating a prospective Failure Mode and Effects Analysis (FMEA) for the pediatric medication administration pathway to map process vulnerabilities
  5. E
    Mandating annual simulation-based competency assessments for all pediatric nurses on recognizing appropriate weight-based medication volumes

Cevap

Procuring commercially prepared, standardized unit-dose syringes of high-risk pediatric medications to eliminate the need for manual compounding in the hospital pharmacy
The most effective way to prevent human error in complex systems is to completely eliminate the hazard or the step where the error occurs. Procuring commercially prepared, unit-dose syringes is an example of 'Elimination' (the highest tier in the hierarchy of safety controls). By removing the manual calculation, dilution, and compounding steps from the hospital pharmacy, the root cause of the decimal point error is entirely eradicated. This represents a stronger system change than forcing functions, administrative rules, or education.

Adım Adım Çözüm

1
Analyze the root cause and the mechanism of the error.
The root cause was a manual calculation and compounding error in the pharmacy, which resulted in a syringe containing 150 mg of gentamicin but being incorrectly labeled as 15 mg.
Accurate identification of the root cause is necessary before applying the hierarchy of controls.
2
Evaluate the secondary active error (BCMA bypass) to determine its actual impact.
Although the nurse bypassed the scanner, scanning the mislabeled syringe would have produced a false 'match' against the 15 mg order. BCMA cannot detect internal volume errors if the label matches the order.
This step reveals that forcing a BCMA scan would not have prevented this specific event.
3
Apply the hierarchy of safety controls to the remaining options.
Elimination/Substitution is the strongest control. Engineering controls (forcing functions) are next. Administrative controls (double-checks, policies) and Education are the weakest.
The question asks for the most reliable, highest-leverage system change.
4
Select the intervention that maps to the highest tier of the hierarchy of controls.
Procuring commercially prepared unit-dose syringes eliminates the manual compounding step entirely, representing the strongest level of system reliability.
Eliminating the hazard entirely removes the possibility of human compounding error.

Anahtar Kavram

Hierarchy of Safety Controls and Root Cause Analysis
Tahmini Süre:1m 30s
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Konular

Root Cause Analysis and Error Investigation

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