Impact of Integrative Cardiopulmonary Exercise Testing (3)
We most often use a cycle ergometer for integrative cardiopulmonary exercise testing and make measurements during an exercise protocol in which the work rate is increased in a stepwise manner each minute. The protocol is designed to reach the maximum capacity of the patient between 8 and 12 minutes of the incremental exercise period. The patient is carefully monitored during and after the study, and physical examination of the patient during exercise is often important. ampicillin antibiotic
What Does Gas Exchange during Exercise Measure?
In practical terms, there are two clinical questions asked of the integrative cardiopulmonary exercise test:
(1) Can the patient perform exercise at the level predicted for a normal person of similar age and size?
(2) If exercise capacity is abnormally low, what is the cause of that reduction? These questions are addressed by measuring such important gas exchange variables as the maximum or peak 02 uptake, C02 output, the anaerobic threshold (AT), and others. These variables, when compared with predicted values from normal subjects, answer whether the exercise capacity is normal or low, and, if low, the pattern of gas exchange often indicates the cause (pathophysiology) of reduction.