|
|
|
|||||||
|
|||||||||
|
TIPS ADVANCED SEARCH | ||||||||
|
|||||||||
|
|||||||||
Cardiopulmonary Exercise Test (CPET)
at the Clinical Center
The researchers and staff of the National Heart, Lung, and Blood Institute and the Clinical Center welcome you. Preparing for your Cardiopulmonary Exercise Test (CPET) This information will help you understand and actively take part in your Cardiopulmonary Exercise Test (CPET). With your cooperation, these important tests will provide helpful information for your doctors to use during your stay at the Clinical Center. What are Cardiopulmonary Exercise Tests (CPET)? This test allows your doctor to learn how your lungs, heart and muscles react to exercise. Cardiopulmonary exercise tests may be performed on a stationary bike or a treadmill. As you ride a bike or walk on the treadmill, we measure how much air you breathe, how much oxygen you require and how fast and efficiently your heart beats. To measure the amount of air that you breathe you may either have to wear a face mask or a mouth piece, similar to that used for pulmonary function tests (PFT). In this case your nose will be pinched closed by a soft nose clip. An EKG (electrocardiogram) will check your heart’s electrical activity. Why are CPETs done? You may have CPETs for many reasons, for example, as a precaution before surgery, to check the status of your lung or heart disease or as part of your role in research. CPETs also help your doctor know whether you need to use oxygen during exercise and determine which types of activities you can perform without oxygen. Preparation There is no preparation for CPETs, but it is best that you be relaxed. Wear comfortable, loose-fitting clothing and avoid belts or girdles that may make it harder for you to breathe. Women should wear bras. Wear comfortable, flat shoes that will not slip off while you are biking or walking. You may take breathing medications before exercising. If you smoke, avoid smoking for at least 8 hours before testing. Do not eat for two hours before the test, and do not drink liquids one hour before the test. Ask your doctor for other instructions, especially if you have heart disease, experience chest pain, or take medications that control your heart rate. Inform the doctor or nurse about any temporary or permanent condition that could affect your ability to move, walk, bear weight, or keep your balance. If possible, discuss this when you are first scheduled for the test. It is also important that the doctor and cardiopulmonary technologist conducting the test have this information. Try to be as well rested as possible. You may need to reschedule the test if you feel unwell (for example, if you have a cold). If you do not feel you can give your maximum exercise effort, contact your nurse or doctor before the test. Test explanation and consent Your CPET will be done in one of the pulmonary function laboratories of the Pulmonary-Critical Care Medicine Branch. Before the test begins, the cardiopulmonary technologist or supervising physician will explain it to you. Feel free to ask questions and voice concerns at this time. When you understand what will happen, you will be asked to sign an informed consent document for the test to be performed. To monitor your heart during exercise, adhesive patches, called electrodes, will be put on your chest. Your chest will be cleansed with alcohol and shaved in some areas (if necessary) before these electrodes are placed. You will be asked about symptoms you have had with exercise in the past. Describe, as completely as you can, any chest discomfort, breathing problems, lightheadedness or dizziness, fluttering in the chest, weakness, fatigue, or anything else you think may be relevant. Also, mention anything you feel while you are being prepared for the test. Overview of CPET A doctor will be with you throughout the test. Your heart rate and rhythm, your blood pressure, breathing rate, oxygen consumption, and oxygen saturation (finger or forehead probe) will be checked during the test.
After the Procedure
|
|