Which test would likely be used to confirm the diagnosis of endocarditis?

The echocardiogram is the primary test used to confirm the diagnosis of endocarditis because it allows for direct visualization of the heart's valves and chambers. Through this imaging technique, healthcare providers can identify vegetations, which are clumps of platelets, fibrin, and microorganisms that adhere to the heart valves or wall. These vegetations are a hallmark of infective endocarditis.

Echocardiography can be performed in two main forms: transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE). TEE is more sensitive and specific for detecting vegetations and abscesses, especially in cases where TTE results are inconclusive. Thus, the echocardiogram plays a crucial role in both the diagnosis and management of endocarditis.

Chest X-ray, CT scans, and complete blood counts can provide important information and support the diagnosis, but they are not definitive for confirming endocarditis. A chest X-ray might show signs of heart failure or other complications but won’t detect vegetations directly. A CT scan can be useful in evaluating complications of endocarditis but does not provide the detailed views of the heart valves needed for a definitive diagnosis. A complete blood count