PEmax (MEP) Test
Slide the MicroRPM switch from ‘O’ to ‘MIP/MEP’, whilst applying
no pressure to the mouthpiece. Rotating segments will be displayed
whilst the unit performs an auto-zero function.
When the MicroRPM is ready a ‘beep’ will be heard and ‘0’ displayed.
To perform the test instruct the subject to insert the mouthpiece
into the mouth, ensuring the ange is positioned over the gums and
inside the lips, whilst the ‘bite blocks’ are between the teeth.
The subject should then inhale to TLC (Total Lung Capacity), lungs
full, then perform a ‘Valsalva’ manoeuvre, a forced exhalation
against the MicroRPM with as much eort as possible for as long as
possible (minimum 2 seconds).
The display will report the result, the maximum average expiratory
pressure sustained over a 1 second period of the test, in cmH2O.
Ideally, the subject should repeat this test 3 times to ascertain a
best value.
To repeat either the PImax or PEmax tests the MicroRPM must
rstly be returned to the ‘O’ position.
To perform the test instruct the subject to insert the mouthpiece
into the mouth, ensuring the ange is positioned over the gums and
inside the lips, whilst the ‘bite blocks’ are between the teeth.
The subject should then exhale to RV (Residual Volume), lungs
empty, then perform a ‘Mueller’ manoeuvre, a forced inhalation
against the MicroRPM with as much eort as possible for as long as
possible (minimum 2 seconds).
The display will report the result, the maximum average inspiratory
pressure sustained over a 1 second period of the test, in
centimetres of water (cmH2O). Ideally, the subject should repeat
this test 3 times to ascertain a best value.
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