MD Diagnostics RP Check, Руководство по эксплуатации

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Request the subject to insert the mouthpiece into their mouth, ensuring the
flange is positioned over the gums and
inside the lips, whilst the ‘bite
blocks’ are between the teeth. The subject should inhale as much air as
possible until the lungs are fully (Total Lung Capacity
– TLC) and then
exhale with as much effort and for as long as possible (minimum 1.5
seconds). If no exhalation has occurred the alarm will constantly make an
audible beep indicating it is waiting for a test to be performed, when
exhalation starts a longer audible beep will be heard.
The display will show maximum average expiratory pressure sustained over
a one second period of the test - MEP. If the manoeuvre was less than 1.5
seconds, the unit will beep and a stopwatch with an exclamation mark will
be displayed indicating that the expiration needs to be longer. When 2
seconds exhalation has occurred, an audible noise will be made indicating
the acceptable time period has been met. After each manoeuvre has been
performed pressing the select key
will allow the operator to view the
Pressure time trace and the additional indices PMax, PAv, MRPD, and
MRR.
Pressing the select key and keeping it held down will change the display
back to the MEP blow icon.
It is recommended to perform three good tests and the best result as the
maximum achievable MIP, MEP or SNIP. The ATS recommends for
reproducibility that the three tests performed should be within 20% of the
highest MIP pressure obtained. As tests are performed the highest value
acceptable test (over 1.5 seconds) will be displayed along with a cup to
indicate the best test, if subsequent tests are within 20%, they will be shown
with a smiley face and if not within the 20% reproducibility a sad face will be
displayed, indicating further testing should be performed.