A departmental quality improvement committee is reviewing five recent adverse events related to diagnostic errors. To properly structure a new patient safety curriculum, the committee must correctly classify the primary cognitive error that contributed to each case. Match each clinical misstep with the most accurate cognitive bias.
- A physician recently missed a pulmonary embolism in a young marathon runner. Subsequently, the physician initiates extensive thromboembolic workups for several young athletes presenting with clear mechanical costochondritis.Availability heuristic
- A clinician suspects inflammatory bowel disease in a patient with diarrhea. The clinician emphasizes a borderline elevated fecal calprotectin while actively discounting a negative colonoscopy as a sampling error.Confirmation bias
- A patient is admitted with an emergency department sign-out diagnosis of 'COPD exacerbation.' The ward team continues treating for this condition for two days before realizing the patient actually has congestive heart failure.Diagnostic momentum
- A triage provider assumes that an unkempt patient with a known history of intravenous drug use who presents with back pain is solely drug-seeking, subsequently missing an early epidural abscess.Ascertainment bias
- A physician quickly diagnoses a patient's acute cough and fever as influenza during peak flu season, immediately discharging them without evaluating for secondary bacterial pneumonia.Premature closure
Answer
The correct pairings align the athlete scenario with Availability heuristic, the diarrhea scenario with Confirmation bias, the COPD/CHF handoff with Diagnostic momentum, the back pain stereotyping with Ascertainment bias, and the quick flu discharge with Premature closure.
Each clinical scenario exemplifies a distinct cognitive bias. The availability heuristic is driven by recent memorable cases. Confirmation bias involves cherry-picking evidence. Diagnostic momentum is the uncritical acceptance of a prior label. Ascertainment bias is driven by stereotyping. Premature closure is stopping the diagnostic process before comprehensive evaluation.
Step-by-Step Solution
Key Concept
Identifying and distinguishing specific cognitive biases that lead to diagnostic errors in clinical practice.