Cardiopulmonary Exercise Test
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Heart, lung, and metabolic conditions may cause shortness of breath, exercise intolerance or discomfort and pain in the chest.
The Cardiopulmonary Exercise Test is a stress test that assesses how well the heart, lungs, and muscles are working individually, and how these systems are working in unison. The full cardiopulmonary system is assessed during a CPET by measuring the amount of oxygen your body is using, the amount of carbon dioxide it is producing, your breathing pattern, and electrocardiogram (EKG) while you are riding a stationary bicycle. How is a Cardiopulmonary Exercise Test performed? Unlike a traditional stress test, the CPET is performed on a stationary bicycle, which is safer than a treadmill. Many patients also feel more comfortable riding the bicycle than walking on a treadmill. |
During the test various pieces of equipment will be used to monitor your body’s response. This equipment includes:
Before exercise begins, you will be asked to perform 2 lung tests. The results of these tests will be compared to your breathing during exercise. Your technician will then fit the required equipment to you and help you get on the bicycle. While you are resting on the bicycle, your technician will explain the testing procedure in greater detail. At the end of the rest period, you will be asked to begin pedaling lightly for a few minutes, to warm up. The resistance on the bicycle will then slowly become harder and harder as if you were going up a hill that keeps gently getting steeper and steeper. The test will continue until you are giving your maximum effort and can no longer continue. The actual time it takes to perform the test, from the time you get on the bike, through the exercise portion and recovery will be between 15 and 25 minutes. However, you will only be asked to exercise at a hard intensity for about 3 to 4 minutes. Additional tips for a successful test:
How should I prepare for my Cardiopulmonary Exercise Test? You will be wearing EKG leads on your chest, so you should not wear one piece outfits or clothing that prevents easy access to your chest. Do not eat or drink (except water) for 3 hours before your test. Exercise or physical labor should be avoided for 24 hours before your test. Bring a list of your current medications with you to your test. Your doctor’s office will tell you if you are supposed to take your medications before the test, but if you are unsure, contact your doctor. |