A treadmill test for stress is frequently referred to as an exercise stress test or a cardiac stress test. This test is used to gather a variety of information on how well your heart is functioning. Using a treadmill, allows physicians to detect heart problems that may not be noticeable while your heart is at a resting rate, according to MayoClinic.com. Your doctor may suggest a treadmill stress test if he suspects you have heart disease or an irregular heart beat.
Reasons for Test
An exercise stress test is used to diagnosis a variety of conditions. Doctors may use this test in order to diagnose coronary artery disease or to help determine the cause of chest pain, according to the American Heart Association. Coronary artery disease occurs when there is a build-up of cholesterol -- known as plaque -- in the major blood vessels that supply your heart with oxygen, blood and vital nutrients. An exercise stress test can help determine a safe level of exercise for individuals as well as aiding in predicting dangerous heart conditions- including heart attack. Exercise stress tests can also help to determine the cause of irregular heart beats -- or arrhythmia. Arrhythmia can cause your heart to be too slowly or too fast. A stress test can help determine if your heart is functioning properly.
The Test
During an exercise treadmill test, you are monitored through the use of electrodes. Electrodes are attached to the chest area and monitor the function of your heart while you are walking on the treadmills. Electrodes can help to monitor your breathing, blood pressure and how fatigued you become during exercise. It is also likely that a blood pressure cuff will be placed on your arm. The doctor will also ask you to gradually increase your walking pace throughout the test. The test lasts about 15 minutes.
Preparation
There is little preparation for a treadmill test. You will be asked to avoid eating, smoking, caffeinated beverages as well as alcohol for three hours before your test. You will also be instructed to wear sneakers and comfortable workout clothes.
Possible Side Effects
Other than possible fatigue, side effects are rare. However, you may experience dizziness, heart palpitations, shortness of breath or chest discomfort. This can occur during or after your test.
Other Testing
Prior to your stress test, the doctor will review your medical history. Depending upon your history, a stress test can include more than just a treadmill. Your doctor may request an echocardiogram, which is an ultrasound of your heart. Your doctor can also order medication to stimulate your heart rate if you are unable to exercise long enough on the treadmill to get results. A nuclear stress test is another possibility. During this test, a radioactive material is injected into your blood stream. Cameras are used to detect portions of your heart that are not receiving enough blood flow.
After the Test
After the treadmill test is complete, you will be asked to remain still and then lie down. The monitors will remain in place and your vital signs will be taken as your heart rate and breathing return to their normal levels. There are no restrictions on what you can and cannot do after a stress test.
