Heart Stress Tests | Torrance Memorial | South Bay

Stress Tests

Cardiologist with Patient on a treadmill test

A stress test, also called an exercise stress test, is used to gather information about how well your heart works during physical activity. Because exercise makes your heart pump harder and faster than it does during most daily activities, an exercise stress test can reveal problems within your heart that might not be noticeable otherwise.

Types of Cardiac Stress Test

Treadmill Stress Test

As long as you can walk and have a normal ECG, this is normally the first stress test performed. You walk on a treadmill while being monitored to see how far you walk and if you develop chest pain or changes in your ECG that suggest that your heart is not getting enough blood.

Stress Echocardiogram

An echocardiogram (often called "echo") is a graphic outline of the heart's movement. A stress echo can accurately visualize the motion of the heart's walls and pumping action when the heart is stressed; it may reveal a lack of blood flow that isn't always apparent on other heart tests.

Dobutamine or Adenosine Stress Test

This test is used in people who are unable to exercise. A drug is given to make the heart respond as if the person were exercising. This way the doctor can still determine how the heart responds to stress, but no exercise is required.

Nuclear Stress Test

This test helps to determine which parts of the heart are healthy and function normally and which are not. A small amount of radioactive substance is injected into the patient. Then the doctor uses a special camera to identify the rays emitted from the substance within the body; this produces clear pictures of the heart tissue on a monitor. These pictures are done both at rest and after exercise. Using this technique, areas of the heart that have a decreased blood supply can be detected.

Tilt Test

The test helps the physician evaluate certain blood pressure and heart reflexes that keep blood flowing through the body. It requires the individual to stand tilted on the test table while monitoring/recording of the blood pressure, heart rate, and any symptoms occurs. Disruption in the normal reflexes that control blood pressure and heart rate, which causes symptoms such as dizziness, nausea or even passing out, is indicative of a positive test result.

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