Filled with tables, graphs, and illustrative cases, the book helps readers fully understand the clinical utility of pulmonary function tests. This edition includes new information on the forced oscillation technique for measuring respiratory system resistance. Also included is a discussion of measurement of exhaled nitric oxide, which is becoming useful in the study of asthma. Other highlights include nearly fifty new illustrative cases and current American Thoracic Society/European Respiratory Society Task Force guidelines on standardization of pulmonary function testing and interpretation.