Radiologic diagnostic errors can result in delayed or unnecessary treatment. This paper describes five types of cognitive biases, with accompanying case study and images, that result in misdiagnosis. Both individual education and system-level solutions are described.

Incorrect patient registration, application of the wrong label, and blood draw from the wrong patient can all cause blood transfusion errors. This systematic review identified six studies related to nursing and blood transfusion safety. Errors fell into two broad categories - human and environmental factors, and education. Initial and continuing education for all members of the team, including registration staff, should be considered to improve and maintain transfusion safety.

The effective use of resources through stewardship initiatives can support error reduction through focusing actions of care. This commentary discusses how diagnostic stewardship can enhance diagnostic testing behaviors across the diagnostic process.

Blood transfusions errors can have serious consequences. In this retrospective study including 15 community hospitals, researchers identified high rates of unnecessary blood transfusions, primarily attributed to overreliance on laboratory transfusion criteria and failure to follow guidelines regarding blood management.

Metacognition (e.g., when one reflects on one’s own decision and decision making) is an approach to reducing diagnostic errors. Using data from the Melanoma Pathology Study (M-PATH) and Breast Pathology Study (B-PATH), researchers assed pathologists’ metacognition by examining their diagnostic accuracy and self-confidence. Results showed pathologists with increased metacognition sensitivity were more likely to request a second opinion for incorrect diagnosis than they were for a correct diagnosis.

Physicians, including resident physicians, report safety events at lower rates than nurses and other staff. This study analyzed adverse event and near miss reporting by residents in one American hospital. Although pathology residents accounted for more than 5% of residents in the hospital, they only accounted for 0.5% of all reports.

Poor usability of electronic health record (EHR)-based computerized provider order entry (CPOE) can lead to adverse events. Using a newly developed self-administered assessment tool, researchers identified several EHR usability and safety issues across medication, laboratory, and radiology CPOE functions.

Studies have shown diagnostic discordance in evaluation of surgical pathology specimens. In this study, pathologists and pathology residents were asked to diagnose surgical pathology or cytopathology cases and provide a diagnosis. Most respondents provided the correct diagnosis for most of the cases; 35% of cases were wholly or partially misdiagnosed. Educational and process changes (e.g., requiring subspecialist over-read for some diagnoses) were implemented in the pathology department in response, resulting in substantial improvement in error rates.

Appropriate antibiotic prescribing is a core component of antibiotic stewardship programs to reduce the risk of antibiotic-resistant microbes. This study assessed the rate of misdiagnosed pediatric urinary tract infections (UTI) and associated antibiotic use following implementation of a quality improvement intervention. Using three interventions (diagnostic algorithm, callback system, standardized discharge antibiotic prescription), misdiagnosis of UTI decreased by half, and 2,128 antibiotic days were saved.

Wrong blood in tube (WBIT) errors can result in serious diagnostic and treatment errors, but may go unrecognized by clinical staff. In this study, machine learning was used to identify potential WBIT errors which were then compared to manual review by laboratory staff. The machine learning models showed higher accuracy, sensitivity, and specificity compared to manual review. 

Healthcare organizations use multiple proactive and reactive methods of investigating and preventing adverse events. This study combined proactive and reactive risk assessments into a Combined Proactive Risk Assessment (CPRA) to identify risks not detected by one method on its own. The four steps of CPRA are illustrated using the example of outpatient blood draws in the Veterans Health Administration.

Delayed communication of abnormal test results can contribute to diagnostic and treatment delays, patient harm, and malpractice claims. The Department of Veterans Affairs specifies abnormal test results be communicated to the patient within seven days if treatment is required, and within 14 days if no treatment is required. In the first full year of the program, 71% of abnormal test results and 80% of normal test results were communicated to the patient within the specified timeframes. Performance varied by facility and type of test.

Electronic health records (EHR) can improve patient care and safety but are not without potential risks. A cyberattack led to a 25-day shutdown of a hospital’s EHR that necessitated a rapid shift to manual processes. This article outlines the laboratory service’s processes during the shutdown, including patient safety and error reduction, billing, and maintaining compliance with regulatory policies.

Radiofrequency identification (RFID) technology has been most commonly used in perioperative settings to improve patient safety. This study explored whether RFID technology can improve process measures in laboratory settings, such as order tracking, specimen processing, and test result communication. Findings indicate that RFID-tracked orders were more likely to have completed testing process milestones and were completed more quickly.

A shared understanding of terminology is critical to providing appropriate treatment and care. This study assessed pathologist and clinician agreement of commonly-used phrases used to describe diagnostic uncertainty in surgical pathology reports. Phrases with the strongest agreement in meaning were “diagnostic of” and “consistent with”. “Suspicious for” and “compatible with” had the weakest agreement. Standardized diagnostic terms may improve communication.

Wrong blood in tube (WBIT) errors can be classified as intended patient drawn/wrong label applied or wrong patient/intended label applied. In this international study, errors were divided almost evenly between the two types and most were a combination of protocol violations (e.g. technology not used or not used appropriately) and slips/lapses (e.g., registration errors). Additional contributory factors and recommendations for improvement are also discussed.

Transfusion errors can have serious consequences. This study compared wrong blood in tube (WBIT) errors in 9 countries across three settings: emergency department, inpatient, and outpatient. Results show emergency department WBIT errors were significantly higher in emergency departments, and that electronic positive patient identification (ePPID) significantly reduced WBIT errors in the emergency department, but not in inpatient or outpatient wards.