09060 Issue 1
9
Page
of 40
EN
Alpha - Instructions for Use
VC test session
a. Breathe normally until the end-expiratory lung volume is stable.
Stability is defined as having at least three tidal breaths with end
expiratory lung volume within 15% of the tidal volume (the device
will alert a user when this has been achieved).
b. Inhale completely, with a brief pause when lungs are completely
full (≤ 2 secs).
c. While maintaining an upright posture, exhale in a relaxed manner
with no hesitation until no more air can be expelled.
d. It is vital that the operator encourages the subject to keep exhaling
to ensure all air is expelled (when a plateau has been reached or
expiration time reaches 15 seconds).
e. The operator should repeat instructions as necessary, with
enthusiasm.
f.
When prompted by the device that a satisfactory expiratory flow
plateau has been achieved or expiration time >15 seconds, inhale
maximally and then return to normal breathing.
g. The manoeuvre is now complete. Remove the BVF from the mouth.
h. Listen for two beeps. The device is now ready for the next blow.
i. Repeat for a minimum of three manoeuvres, up to a maximum of
eight.
j. Check VC repeatability and perform more manoeuvres as
necessary.
k. Click on
for quality information and test acceptability.
Note
: A single-breath VC technique may also be performed on the
device
.
FVC test session:
a. Inhale completely and rapidly, with a brief pause when lungs are
completely full (≤ 2 secs).
b. While maintaining an upright posture, exhale with maximal effort
until no more air can be expelled.
c. It is vital that the operator encourages the subject to keep exhaling
to ensure all air is expelled (when a plateau has been reached or
forced expiratory time (FET) reaches 15 seconds).
d. The operator should repeat instructions as necessary, with
enthusiasm.
e. Breathe in with maximal effort until completely full. The
manoeuvre is now complete, remove the BVF from the mouth.
f. Listen for two beeps. The device is now ready for the next blow.
g. Repeat for a minimum of three manoeuvres, up to a maximum of
Содержание alpha 6000
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