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Endocarditis - Exams and Tests
SYMPTOMS & TREATMENTS
The first step in diagnosing endocarditis is a review of your medical history and a physical exam.
As part of your medical history, your doctor will ask you:
- About your symptoms.
- If you have a heart murmur or have had valve replacement surgery.
- If you have any recent risk factors (things that put you at risk) for a bacterial or fungal infection, such as drug injection, dental procedures, or a catheter (such as a catheter for hemodialysis).
As part of your physical exam, your doctor will check your body for signs of an infection. This includes:
- Looking in your eyes for small amounts of bleeding.
- Looking at your skin for tiny purple or red spots, tender bumps, or painless red spots.
- Listening to your heart for a murmur.
- Listening to your lungs for any fluid buildup.
- Giving you a neurologic exam to check for signs of a stroke.
Other tests may be needed to diagnose endocarditis. They include:
- Blood cultures. Several blood cultures are recommended to identify bacteria or fungi in the bloodstream. But sometimes blood cultures fail to detect endocarditis. The cultures may fail because you recently took antibiotics or the bacteria or fungi causing your endocarditis do not grow well in a lab culture. If the blood cultures do not detect endocarditis, you may need further testing.
- Echocardiogram, including transthoracic echocardiogram (TTE) and transesophageal echocardiogram (TEE). These tests use high-pitched sound waves to produce an image of the heart. They can find infected areas, heart valve defects, and other abnormalities.
You may need other tests to identify complications of endocarditis. These tests may include:
- Chest X-ray, which can show whether your heart is enlarged or you have signs of heart failure.
- Electrocardiogram (EKG, ECG). An EKG can determine whether your heart rhythm is regular. Endocarditis can cause abnormal heartbeats or an abnormal heart rhythm (heart block).
- Urinalysis, which checks for blood and protein in the urine.
- Computed tomography or an MRI. These tests can tell if a blood clot caused by endocarditis has caused a stroke or if the infection has spread to your brain.
- Cardiac catheterization. This test may be useful if you need to have valve replacement surgery because of endocarditis. It may also be used before valve surgery to see if you have coronary artery disease that should be treated at the same time.
| By: | Healthwise Staff | Last Revised: March 9, 2011 |
| Medical Review: | E. Gregory Thompson, MD - Internal Medicine W. David Colby IV, MSc, MD, FRCPC - Infectious Disease | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.
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