Welch Allyn CP 200 Spirometry Option - User Manual - Manual (Page 78)

74 Appendix D Predictive Norms, etc. Welch Allyn CP 200 Spirometry Option
Understanding Your Interpretation Results
This diagram shows how the automatic interpretation software uses a patient's FVC and
FEV1 results, in comparison with normal values, to determine the degree of obstruction
or restriction. This diagram follows the American Thoracic Society’s example for
interpretation.
For details on interpretative strategies, see the document noted in Reference 9 on
page 75.
Figure 35. Data Interpretation, Process Diagram