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3.4.2.
Types of Breathing Maneuvers
➢
The Forced Vital Capacity (FVC) Test Breathing Maneuver:
1. Ensure that the device is connected. Select the FVC test mode and the test screen
will appear.
2. Then adjust the zero flow level for the device.
3. The patient will now need to perform a forced expiratory maneuver. To get ready, the
patient should inhale and exhale normally a couple of times.
4. Ask
the
patient
to
place
the
mouthpiece in his/her mouth, past
his/her teeth and ensure that his/her
lips are tightly sealed around the
mouthpiece, then the patient takes a
fast and deep breath, filling his/her
lungs as much as possible. The
breath taken should not be kept for
more than 2 seconds.
5. Keeping his/her lips sealed tightly around the mouthpiece, the patient must blow out
the inhaled air and empty his/her lungs as hard and fast as the patient can into the
mouthpiece and keep blowing until completely emptying his/her lungs without
breaking the seal of his/her lips.
6. If it takes more than 15 seconds to empty all the air from his/her lungs with the right
performance, the test will be completed automatically. The patient may use a nose
clip to help him/her to exhale only through his/her mouth during the forced exhalation
maneuver.
7. The patient may remove the mouthpiece from his/her mouth and resume normal
breathing once the breathing maneuver has been completed.
8. The test results will be displayed on the app screen. Give feedback to the patient on
his/her effort by looking at the test results. The patient will need to perform 2 more
tests by repeating this breathing maneuver. However, please make sure that the
patient has time to rest between tests and feels well enough to continue.
➢
Tidal Forced Vital Capacity (Tidal FVC) Test Breathing Maneuver:
1. Ensure that the device is connected. Select the Tidal FVC test mode and the test
screen will appear.
2. Enter the required ambient conditions (makes sure you entered the correct values as
the measurement may be significantly affected by a wrong value) like temperature
and relative humidity and then adjust zero flow level for the device.
First Pub. Date: 24.09.2018
R.9-1 / 10.03.2020