Welch Allyn CP 200 Spirometry Option - User Manual - Manual (Page 77)

Directions for Use Appendix D Predictive Norms, etc. 73
About Test-Quality Grades
Another type of feedback is the test-quality grade, as described in the following table.
If Print Quality Grades is enabled in the settings, a grade appears on printed reports and
also displays on screen when you view the values or interpretation of a completed test (as
described under
“To View a Test’s Results” on page 44).
To learn how to enable or disable this setting, see “Reviewing the Spirometry Print
Settings” on page 17.
Test-Quality
Grade
Number of Acceptable Efforts Reproducibility
A 2 or more Largest two FEV1 values match
≤ 100 mL.
Largest two FVC values match
≤ 100 mL.
B 2 or more Largest two FEV1 values match > 100 and
≤ 150 mL.
C 2 or more Largest two FEV1 values match > 150 and
≤ 200 mL.
D 1 or more Largest two FEV1 values match > 200 mL.
F None