Exercise Tolerance Test or Exercise for Desaturation Test Make an Appointment Patient Education Find a Doctor Download Patient Education The exercise tolerance test evaluates the ability of your heart and lungs to provide oxygen and remove carbon dioxide from the bloodstream before, during and after you exercise. Download PDF: Exercise Tolerance Test or Exercise for Desaturation Test Download PDF: Exercise Tolerance Test or Exercise for Desaturation Test View more information on Exercise Tolerance Test or Exercise for Desaturation Test National Jewish Health authors free downloadable patient education materials to provide you and your family the information and tools to help manage your disease. They include Understanding Booklets, Med Facts, Test Facts, Medication handouts and more. Search Free Education Materials