Cardiopulmonary Exercise Testing (CPET) In Adults: Difference between revisions
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* Determination of efficacy of therapeutic intervention | * Determination of efficacy of therapeutic intervention | ||
* Outcome variable for clinical trials | * Outcome variable for clinical trials | ||
* Motivation and measurable goals to | * Motivation and measurable goals to improve fitness | ||
* Quantification of exercise rehabilitative training intensity | * Quantification of exercise rehabilitative training intensity | ||
* Development of knowledge and understanding of the disease. | * Development of knowledge and understanding of the disease. | ||
Revision as of 08:37, 9 October 2020
Introduction[edit | edit source]
Cardiopulmonary exercise testing (CPET) is an examination that allows the investigator to simultaneously study the responses of the cardiovascular and ventilatory systems to a known exercise stress.This is possible because gas exchange at the airway is a consequence of cardiac output and pulmonary blood flow, as well as peripheral O2 extraction coupled to ventilation. Thus, the heart, with the circulation, couples gas exchanges (O2 and CO2) of muscle respiration with that at the lungs. The adequacy of the cardiovascular transport of O2 for known exercise work rates is described by the lung gas exchange.[1]
CPET involves mainly the analysis of respiratory gases including.
- Respiratory oxygen uptake (Vo2),
- Carbon dioxide production (Vco2),
- Ventilatory measures during a symptom‐limited exercise test.
Purpose[edit | edit source]
- Diagnostic and prognostic evaluation of the cardiovascular and pulmonary diseases.
- Determination of the severity and functional effects of the disease
- Assessment for suitability of treatment, i.e. surgery, transplantation, supplemental oxygen therapy
- Determination of efficacy of therapeutic intervention
- Outcome variable for clinical trials
- Motivation and measurable goals to improve fitness
- Quantification of exercise rehabilitative training intensity
- Development of knowledge and understanding of the disease.
Technique[edit | edit source]
Cardiopulmonary exercise testing (CPET) can be assessed by Laboratory method (treadmill or bicycle ergometer)
Equipments[edit | edit source]
- Bicycle ergometer or Treadmill
- 12-ECG leads
- Non-invasive blood pressure cuffed monitoring
- A non‐re breathing valve is connected to a mouthpiece to measure VO2 and (VCO2) and also prevent mixing of inspired and expired air
- Pulse oximetry to monitor oxygen saturation levels.
Before attending the test[edit | edit source]
- Do not eat a heavy meal for 2 hours before
- Do not take alcohol for 4 hours before
- Do not take vigorous exercise for 30 minutes
- Do not wear any tight clothing that may restrict your breathing
- Do not smoke for at least 1 hour prior
References[edit | edit source]
- ↑ Karlman Wasserman. Principles of Exercise Testing and Interpretation Including Pathophysiology and Clinical Application. 5th edition. Wolters Kluwer Bussiness. 2012
