Question

Difficulty: MediumClassification of Medical Errors and Adverse Events

Which patient safety classification category best characterizes each of the described clinical event summaries?

  • A pharmacist intercepts a 10-fold overdose of oral morphine prescribed for a neonate before the medication leaves the pharmacy.Near Miss (Close Call)
  • An obstetric patient dies from a severe hemolytic reaction after receiving an ABO-incompatible blood transfusion due to bypassed bedside verification.Sentinel Event
  • A young adult with no prior medical history develops Stevens-Johnson syndrome after receiving a first lifetime course of an appropriate, indicated antibiotic.Unpreventable Adverse Event
  • An electronic health record software update inadvertently disables severe allergy alerts hospital-wide, persisting unnoticed for several weeks.Latent Error
  • An exhausted critical care nurse intends to administer epinephrine during a resuscitation but inadvertently grabs and pushes an adjacent syringe containing atropine.Active Error (Slip)

Answer

Pharmacist intercept -> Near Miss; Hemolytic death -> Sentinel Event; Antibiotic reaction -> Unpreventable Adverse Event; EHR flaw -> Latent Error; Wrong syringe -> Active Error
Accurately categorizing patient safety events is essential for appropriate root cause analysis and quality improvement. Near misses must be reported to fix systems before harm occurs. Sentinel events mandate immediate institutional investigation. Latent errors require systemic redesign, while unpreventable adverse events require focusing on rapid recognition and mitigation rather than error prevention.

Step-by-Step Solution

1
Analyze whether the event reached the patient and caused harm.
The intercepted overdose did not reach the patient (Near Miss). The antibiotic reaction caused harm despite standard care (Unpreventable). The transfusion caused death due to error (Sentinel).
Determines the fundamental categorization between near miss, preventable adverse event, and unpreventable adverse event.
2
Evaluate the nature and origin of the systemic or individual failures.
The EHR update is a systemic issue waiting to cause harm (Latent Error). The nurse grabbing the wrong syringe is an immediate operator failure (Active Error).
Differentiates between 'blunt end' system flaws and 'sharp end' operator mistakes.

Key Concept

Classification of medical errors requires distinguishing between system vulnerabilities (latent errors), immediate operator failures (active errors), intercepted mistakes (near misses), and severe outcomes requiring immediate investigation (sentinel events), while recognizing that not all adverse outcomes stem from errors.
Rate this question