Treadmill Stress Test
Lee Health: Your Trusted Heart Specialists For Understanding Pediatric Cardiac Diseases
At Lee Health pediatric cardiologists use the most advanced an effective diagnostic options available to identify potential cardiac conditions early. We understand the importance of early and accurate diagnosis when developing a care plan for your child, and are ready to help you.
What is a treadmill stress test (exercise stress test)?
An exercise stress test measures the effect of exercise on your child’s heart. A technician will place 10 flat, sticky patches called electrodes on your child’s chest.
These patches are attached to an electrocardiogram (ECG) monitor that follows the electrical activity of the heart during the test. The test takes about an hour.
A cardiologist may order an exercise stress test if a child has an electrical problem in the heart, is having any kind of chest pain, to identify heart rhythm changes that occur during exercise, or to test for a heart valve problem.
Patients will walk on a treadmill or pedal on an exercise bicycle. Slowly (about every 3 minutes), patients will walk (or pedal) faster on an incline or with more resistance. It is like walking fast or jogging up a hill.
While the child exercises, the ECG will measure the heart’s activity. A technician will also monitor the child’s blood pressure.
The test continues until:
- The child reaches a target heart rate.
- The child develops chest pain or a change in blood pressure.
- The ECG suggests that the heart muscle is not getting enough oxygen.
- The child is too tired or has other symptoms that keep him or her from continuing.
How to Prepare for a Treadmill Stress Test
Wear comfortable shoes and loose clothing to allow for exercise. Ask your provider about taking regular medicine on the day of the test since some may interfere with test results. A child should not eat solid foods or drink caffeinated beverages for at least three hours before the test. Your child can drink water up to one hour before the study.
How the Treadmill Stress Test Feels
The health care provider will place electrodes on your child’s chest to record the heart's activity. The preparation of the electrodes on your chest may produce a mild burning or stinging sensation.
The blood pressure cuff on your child’s arm will be inflated every few minutes. This produces a squeezing sensation. Technicians will take baseline measurements of heart rate and blood pressure before exercise starts.
Children often experience some of the following symptoms during the test:
- Chest discomfort
- Shortness of breath
Pediatric Cardiology - Golisano Children’s Health Center
3361 Pine Ridge Rd, Suite 201 Naples, FL 34109Fax: (239) 343-4197
Pediatric Cardiology - HealthPark Commons
16281 Bass Rd, Suite 304 Fort Myers, FL 33908Fax: (239) 343-4197
Pediatric Cardiology - Port Charlotte
22655 Bayshore Rd Port Charlotte, FL 33980Fax: (239) 343-4197
What Abnormal Treadmill Stress Test Results Mean
Abnormal results may be because of:
- Abnormal heart rhythms during exercise
- Changes in your ECG suggesting abnormal heart muscle or coronary artery function
When you have an abnormal exercise stress test, you may have other tests performed on your heart such as:
- Cardiac catheterization
- Nuclear stress test
- Stress echocardiography
- Electrophysiology study
- Cat scan of the heart
Risks of a Treadmill Stress Test
Stress tests are generally safe. But some patients may have chest pain or may faint or collapse. A heart attack or dangerous irregular heart rhythm is extremely rare.
People who are more likely to have such complications are often already known to have heart problems, so they are not given this test.