Diagnostic errors in primary care: lessons learned.

Area of Science:

• Medical error analysis
• Physician education
• Diagnostic reasoning

Background:

• Diagnostic errors are frequent, harmful, and preventable.
• Limited understanding of common presenting complaints, initial incorrect diagnoses, and physician-learned lessons in diagnostic errors.

Purpose of the Study:

• To investigate common presenting complaints, initial diagnoses, and physician-identified lessons learned from diagnostic errors.

Main Methods:

• Survey of 600 physicians (family medicine, internal medicine, pediatrics) in Iowa using mailed questionnaires.
• Quantitative and qualitative analysis of 202 physician responses describing diagnostic errors.

Main Results:

• Common symptoms included abdominal pain, fever, and fatigue.
• Frequent initial incorrect diagnoses were viral infections, musculoskeletal pain, and COPD/asthma.
• Physicians learned to consider broader differential diagnoses and recognize atypical presentations.

Conclusions:

• Diagnostic errors frequently arise from common symptoms and initial benign diagnoses.
• Lessons learned emphasize expanding differential diagnoses and considering unusual presentations.