Vitalograph copd-6 4000, Instructions For Use Manual, Page: 7 / 24

This subject should be referred for spirometry.
10. The Obstructive Index (OI) shows on the left-hand arrow.
• 0 - Green is NORMAL.
• 1, 2 or 3 – Yellow, orange or red are not normal. Refer for
spirometry, but this is unlikely to be COPD.
• Note: If the right hand (COPD) arrow is not green, the left
hand (OI) arrow will also not be green.
11. This is the end of the test, but if desired some test
parameters may be viewed.
12. Following each blow and at the end of the test session, the
FEV1 value displays. Below that is the FEV1 % Predicted
results for that blow, or for the best in session if the
button has been pressed. Pressing again will
toggle between best and last blow.
13. Pressing the button shows the FEV6 and FEV6 %
Predicted results.
14. Pressing the button again shows the FEV1/FEV6 and
FEV1/FEV6 % Predicted results.
15. Pressing the button for a final time shows the estimated
Lung Age. (
)
Notes on testing:
1. During testing, an exclamation mark
(
! ) indicates a poor-
quality blow and the user should blow again. Reasons for
poor quality are;
• Slow Start of test: Vext (extrapolated volume) is > 5% or
150mL of FEV6
• Cough detected.
2. In the event that a test is < 3 seconds duration and has an
abrupt end (change in volume is > 25ml in the last second
of the test), the value FEV will be displayed instead of
FEV6.
3. If the subject experiences side effects such as dizziness
or fatigue during the test procedure, stop testing until
recovered.