10
3. If you are prompted to accept the test, press the
Cancel
button to
reject the test or the Enter key to accept the test.
The VC values recorded for the blow are tabulated. The best VC
value for the current session and the Lower Limit of Normality
(LLN) are also displayed.
4. Repeat to perform another VC test if required.
Note: A maximum of 12 VC tests can be performed in one session.
5. After performing the VC tests, you can do one of four things:
a. Return to the Home screen by pressing the
Home
button. This will finish the test session.
b. Return to the Subject Select screen by pressing
the
Back
button. This will end the test session.
c. Perform a Single Breath Test by pressing the
FVC
button.
d. Perform a Post test by selecting the
Post
button.
Note: Refer to the section on
Performing a Post
Test Session
Perform an IVC Test
1. Wait for the
Exhale to Begin
icon to appear.
This indicates that the COMPACT unit is ready to accept a blow.
2. Read the following instructions to the subject so that testing is
performed properly:
a. Stand up.
b. Insert the mouthpiece into your mouth and, clamping it between
your teeth.
c. Close your lips around the mouthpiece.
d. Breathe in and out normally. This is tidal breathing.