Configuration
Operator’s Manual V1.1 • EasyOne Air • EasyOne Connect
© ndd Medizintechnik AG • Technoparkstrasse 1, 8005 Zurich, Switzerland • www.ndd.ch 98/144
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Lung age calculation
If the Lung Age calculation check box is selected, the lung age is displayed on
the result screen and printed on the report. The lung age is only displayed if
the patient is a smoker. You can set the smoker status on the summary screen.
When the calculated lung age is lower than the patient’s actual age, the
patient’s actual age is displayed.
In the default setting, the Lung Age calculation check box is deselected.
About the summary screen, 56
Automatic QC grading
If the Automatic QC grading check box is selected, quality messages for trial
and quality grades for tests are displayed.
In the default setting, the Automatic QC grading check box is selected.
List of quality messages and quality grades, 73
End-of-maneuver criteria selection
If you choose the FVC option, the measurement continues until the end of test
criteria are met or until you end the test manually. With this setting, all the
intermediate flow values, e.g. MEF
25
, FEF
25-75
, are reported.
If you choose the FEV6 option, the measurement stops after six seconds. With
this setting, none of the intermediate flow values, e.g. MEF
25
, FEF
25-75
, are
reported.
The FVC test determines the forced expiratory vital capacity. The forced
expiratory vital capacity is the maximum volume that the patient can exhale
during the FVC breathing maneuver and is indicated by the FVC value in the
report.
The FEV
6
value indicates the forced expiratory volume that the patient has
exhaled after six seconds.
For diagnostic purposes, the FVC value is comparable with the FEV
6
value. The
advantage of choosing the FEV6 option is that the FVC test only takes the
fixed duration of six seconds and is less demanding for the patient (see
Ferguson (2000/NLHEP) [4]). The disadvantage is that the intermediate flow
values, e.g. MEF
25
, FEF
25-75
, cannot be reported.
List of bibliographic references, 132
PEF unit
The peak expiratory flow can be specified in liters per minute (L/min) or in
liters per second (L/s).
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