Pediatricsintermediate
Order the standard diagnostic sequence for a patient with suspected infective endocarditis (IE).
Answer
Identify clinical risk factors and signs of infective endocarditis, Obtain multiple sets of blood cultures prior to initiating antimicrobial therapy, Perform echocardiography (transthoracic or transesophageal), Integrate clinical, microbiologic, and imaging findings using the modified Duke criteria
Explanation
Suspicion prompts microbiologic sampling and imaging, after which evidence is integrated using clinical criteria. Cultures should be obtained promptly because antimicrobial pretreatment can reduce yield. **Key takeaway:** Diagnosis is a structured combination of clinical, culture, and imaging evidence. **Glossary:** Duke criteria: a framework for classifying the likelihood of IE.
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