Diagnostic Error & Laboratory Testing
Diagnostic error is a major patient safety concern, causing substantial harm and unnecessary medial costs. In every large organization, cases related to diagnostic error make up the largest fraction of filed claims and suits. Although the error rate is not being measured in any setting, it is estimated that 1 in 10 diagnoses is wrong, significantly delayed, or missed altogether. The root causes of diagnostic error include many system-based factors (eg breakdowns in communication, coordinating care, having expertise available when needed, supervision of trainees, etc) as well as cognitive shortcomings. The cognitive errors mostly derive from failures to synthesize the available evidence and inappropriate trust of intuition. Errors related to diagnostic testing are common, and include mistakes by the patient’s doctor (not knowing the best test to order or how to interpret it) as well as problems performing and interpreting the test results by the clinical lab or the Radiology department staff. Many interventions to reduce diagnostic error have been proposed, although few have been rigorously evaluated in clinical practice.
