Stress tests, which help show if your heart gets enough blood and oxygen when stressed, often rely on treadmill exercise to stress the heart. People who aren’t able to exercise can receive a drug that mimics the effect of exercise. Most of the time, stress tests also feature imaging, such as nuclear perfusion or echocardiography, to create pictures of the heart at rest and after stress. Stress tests help show if your heart gets enough blood and oxygen when stressed.
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