Current Practice in Pulmonary Function Testing Scott E. Evans, MD, Paul D. Scanlon, MD Mayo Clinic Proceedings Volume 78, Issue 6, Pages 758-763 (June 2003) DOI: 10.4065/78.6.758 Copyright © 2003 Mayo Foundation for Medical Education and Research Terms and Conditions
Figure 1 Expiratory and inspiratory flow-volume curves. The forced expiratory vital capacity maneuver is represented by positive flow values; the forced inspiratory vital capacity maneuver is represented by negative flow values. Flow-volume curves correlate to numerical values in the Spirometry section of Table 2. Mayo Clinic Proceedings 2003 78, 758-763DOI: (10.4065/78.6.758) Copyright © 2003 Mayo Foundation for Medical Education and Research Terms and Conditions