Erroneous Diagnoses
Erroneous Diagnoses - Related Videos
01:24
Diagnosing Acidosis and Alkalosis
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2024
Diagnosing acid-base imbalances involves systematically analyzing arterial blood samples, focusing on three key measurements: pH, bicarbonate (HCO3−) concentration, and carbon dioxide partial pressure (PCO2). This analysis follows a four-step process that helps identify the imbalance's underlying cause and nature. First, the pH level is assessed to determine whether the blood pH is normal (7.35–7.45), low (acidosis), or high (alkalosis). Next, the PCO2 and HCO3− values are examined to...
08:10
Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test
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Cited by 48 •
2012
The Xpert MTB/RIF test integrates sample decontamination, hands-free operation, on-board sample processing, and ultra-sensitive hemi-nested PCR for the simultaneous detection of Mycobacterium tuberculosis and rifampicin resistance, either in expectorated sputum or concentrated sputum sediments, in approximately two hours. Testing is standardized and requires only moderate laboratory infrastructure and training.
05:44
Skin Biopsy for Diagnosing Discoid Lupus Erythematosus
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Cited by 2 •
2025
Skin lesions are common and important features in many rheumatic diseases, and biopsy with pathological analysis plays a critical role in diagnosis. This article provides a detailed overview of the standardized skin biopsy procedure and, using discoid lupus erythematosus as an example, highlights the essential role of dermatopathology in diagnosing rheumatic diseases.
03:10
Microscopic Cyst Resection for the Treatment of Patients Diagnosed with Epididymal Cyst
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2023
Here, we present a protocol to treat patients diagnosed with an epididymal cyst using microscopic cyst resection. Based on microscopic manipulation, a largely improved visualization of the subtle tissue structures of the epididymis was obtained, so the cyst could be clearly dissected apart and completely removed intact.
04:08
Real-Time Quantitative Reverse Transcription PCR for Diagnosing Viral Infections
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2025
This video demonstrates a quantitative method for detecting viral infection using real-time reverse transcription PCR. The reverse transcription step converts the RNA to cDNA, which is then amplified via PCR cycles. The presence of viral RNA in the sample is confirmed by analyzing the amplification and dissociation curves of DNA obtained from the PCR.
FAQs
Overlapping symptoms can make several diseases appear plausible, especially when clinicians have limited or incomplete information. The diagnostic process must therefore compare competing explanations rather than rely on a single prominent symptom. Building a differential diagnosis, which is a reasoned list of possible conditions, helps clinicians examine alternatives and reduces the chance that an initially attractive explanation will obscure the true cause.
Incomplete findings may leave important features of a condition undiscovered, while misleading results can create unwarranted confidence in an incorrect explanation. Test results also require appropriate interpretation within the patient’s broader history and examination. Careful test selection and deliberate review of findings help distinguish useful evidence from information that could steer assessment toward an erroneous diagnosis.
Cognitive errors can shape how clinicians interpret symptoms, findings, and test results, while communication failures can prevent relevant information from reaching the people responsible for assessment or treatment. These influences may reinforce an early interpretation or leave parts of the clinical picture unrecognized. Strengthening clinical reasoning and interdisciplinary communication addresses both individual and team-based contributors to diagnostic error.
A safer assessment begins with thorough history-taking, followed by a differential diagnosis that considers more than one possible cause of the patient’s presentation. Clinicians can then select tests that address the competing possibilities and interpret the results in context. Clear communication with other clinicians supports a more complete assessment and makes it easier to identify uncertainty before treatment decisions are made.
A broader review is important when symptoms could fit multiple diseases, when findings are incomplete or misleading, or when test results do not clearly explain the patient’s condition. Revisiting the history, differential diagnosis, and interpretation of available evidence can expose an overlooked cause. This approach is relevant whenever uncertainty could delay appropriate care or lead to unnecessary intervention.
Reviewing adverse events and near misses can reveal where history-taking, test selection, result interpretation, or communication failed to support accurate assessment. Learning systems use these events to identify recurring weaknesses rather than focusing only on an individual outcome. The resulting lessons can strengthen clinical processes, improve interdisciplinary communication, and reduce the likelihood that similar diagnostic problems will recur.