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Differences in gas exchange between severities of chronic obstructive pulmonary disease

Wilawan Thirapatarapong1, Hilary F Armstrong, Byron M Thomashow

  • 1Department of Rehabilitation and Regenerative Medicine, Columbia University Medical Center, New York, NY 10032, USA. wilawan.thi@mahidol.ac.th

Respiratory Physiology & Neurobiology
|January 16, 2013
PubMed
Summary

Cardiopulmonary exercise testing reveals distinct gas exchange abnormalities in chronic obstructive pulmonary disease (COPD) patients. Severe COPD (GOLD 3-4) shows higher end-tidal carbon dioxide and lower ventilation efficiency compared to GOLD 2.

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