Result Note: Met ATS criteria for acceptability with expiration > 6 seconds. Volume-
time graph with plateau. F-V loop with normal appearance. Mild obstruction (ratio
67%; postbronchodilator FVC 5.89 L, 114% predicted; FEV1 3.95 L, 96% predicted), no
significant significant bronchodilator response, no restriction (TLC 105% predicted),
no air trapping (RV 73% predicted, RV/TLC 18%), no impairment in gas exchange
(DLCO 133% predicted, 116% correcting for alveolar volume.)