CareFusion MicroDL, Operating Manual

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correction has been selected. The levels for the amber and red
warning lights should now be set as described above in the
description of multiple patient configuration.
Spirometry Operation (Single patient use)
When performing a spirometry test the user should be instructed to
insert a disposable or clean reusable, mouthpiece into the
mouthpiece holder of the spirometer.
The unit is then turned on, the current time will be displayed briefly,
and the three lights will be illuminated before the display changes
to:
The patient should then inhale as deeply as possible, seal their lips
around the mouthpiece and exhale as hard and as fast as possible
until no more air can be exhaled. The spirometry results are then
displayed:
PEF
The first result shown is Peak Expiratory Flow (PEF). The arrows
indicate that the up and down keys may be used to scroll through
the other results of the test. These include FEV1, FVC, FEV1/FVC
(shown as FEV1 FVC), followed by the percentage of predicted value
for all of the above.