Vyaire MicroLab Manuel D'utilisation page 70

Note: Patient efforts is acceptable when:
Patient made a maximum effort. Indicated
to the user by the breath rate being
displayed in green (>65 breaths per
minute).
Lasted a full 12 seconds maneuver.
Indicated to the user by a green line being
displayed – the patient should ideally
continue until the test is automatically
terminated at 15s.
Interruption i.e. Did not cough.
Once the test has finished the display
will show current test (shown in black
– if more than one maneuver has been
performed then the best maneuver will
also be displayed in blue) the MVV rate,
the % variation between maneuvers the
breath rate and an ATS quality warning for
the test session.
'Touch' Again to repeat the maneuver,
Reject to reject the current maneuver,
Results to display a list of indices, the
values obtained, % predicted where
applicable and also a quality statement
concerning the test session.
To meet the ATS quality criteria for a Good
blow the maneuver should last 15 seconds
with a breath rate greater than 65 breaths
per minute. The ATS reproducibility
criterion is two maneuvers with a Good
Blow and the MVV variability between
maneuvers should not exceed 20%.
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