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inhale and exhale only through his/her mouth during this breathing maneuver.
6. The patient may remove the mouthpiece from his/her mouth and resume normal
breathing once the breathing maneuver has been completed.
7. 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 Flow Volume Loop (Tidal FVL) Test Breathing Maneuver:
1. Ensure that the device is connected. Select the Tidal FVL 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.
3. 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.
4. To get ready, the patient inhales and exhales normally at least 3 times, then takes a
slow and deep breath, filling his/her lungs as much as possible.
5. Keeping his/her lips sealed tightly around the mouthpiece, the patient must blow out
this inhaled air and empty his/her lungs as hard and fast as the patient can into the
mouthpiece.
6. After the patient exhales whole air from the lungs, without breaking the seal of his/her
lips, the patient must inhale completely to fill his/her lungs. When performing this
breathing maneuver, the patient must make sure to keep blowing until the patient has
completely emptied his/her lungs. The patient may use a nose clip to help him/her to
inhale and exhale only through his/her mouth during this breathing 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.
NOTE:
In the Tidal FVL mode the patient breathes normally into the device a few times at
the beginning of the test and data is recorded as soon as a forced expiration is detected,
whereas in FVL test mode the test is initiated directly with a forced expiratory maneuver.
First Pub. Date: 24.09.2018
R.9-1 / 10.03.2020
