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SGEM#469: You Take My Breath Away – D-dimer for Ruling out PE in High-Risk Patients

The Skeptics Guide to Emergency Medicine

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Examining Failure Rates and Study Design Biases in PE Diagnosis

This chapter examines a study on the effectiveness of computed tomography pulmonary angiography (CTPA) for pulmonary embolism, noting a low failure rate but raising concerns about the methodology and interpretation of the results. The discussion highlights the complexities and potential biases in retrospective studies, urging caution in evaluating the reliability of such findings.

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