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Stress ECG

What is a stress ECG?

In a resting ECG, the electrical processes of the heart are measured at rest. A stress ECG, on the other hand, measures the electrical currents of the heart under physical stress. For this, the patient is usually physically stressed on a bicycle ergometer or a treadmill while being monitored.

Definition

What is the purpose of a stress ECG?

A stress ECG (also known as a treadmill test or stress test) allows us to assess your heart's ability to work under stress. The test can reveal potential problems such as:

  • an abnormal heartbeat

  • reduced blood flow and

  • possible signs of coronary heart disease.

Purpose

What happens to your body during a stress ECG?

During the stress test, your body works harder, which means that it needs more oxygen. This leads to an increased pumping action of the heart. The test provides information on whether the blood supply in the blood vessels that supply the heart is restricted. A stress test allows the attending physician to assess your physical condition and to determine the type and intensity of exercise that is appropriate for you.

Process

What can you expect during a stress ECG?

At the beginning, we measure your vital signs, including your resting heart rate and blood pressure. Then small adhesive plates (electrodes) are stuck to your chest and arms. The electrodes are connected to the ECG device.

You will be physically active on a treadmill or pedaling at a slow pace on a stationary bike. Over time, the pace will increase. Our team member will ask you repeatedly how you feel.

The test ends when you have maintained your target heart rate long enough to measure heart function, usually after about 10 minutes. Your target heart rate is higher than your resting heart rate and depends on your age and fitness level. The test can be ended at any time if you experience severe symptoms or request it.

Preparation

How do you prepare for a stress ECG?

  • Do not eat for two hours before the test.

  • You should try to avoid caffeine for 24 hours before the test. This includes coffee, tea, energy drinks and certain over-the-counter medications.

  • Do not smoke or use any tobacco products.

  • You may need to stop taking certain prescription medications on the day of the test. These include beta blockers and asthma inhalers. Talk to us before you stop taking these medications.

  • Try to relax. It's normal to feel nervous before a heart test, but anxiety can affect the results.

  • Wear light, comfortable clothing and sturdy shoes.

Summary

Why is a stress ECG performed in our practice?

Dr. Konstantinou may order a stress test to:

  • diagnose evidence of coronary artery disease

  • determine if your symptoms, such as chest pain, shortness of breath, or lightheadedness, may be caused by heart problems

  • determine the appropriate level of exercise

  • check the success of previous procedures to improve blood flow in the coronary arteries of patients with coronary heart disease

  • determine if you are at risk for dangerous heart disease events, including heart attack