NDD EasyOne Pro Operator's Manual page 89

Performing lung function tests
Code Affecting Test type
20 DLCO
21 DLCO
22 DLCO
23 DLCO
24 DLCO
25 MBW
26 MBW
27 MBW
28 MBW
29 MBW
 Quality messages for trials
Operator's Manual V5.0 • EasyOne Pro/LAB Rev. 05
© ndd Medizintechnik AG • Technoparkstrasse 1, 8005 Zurich, Switzerland • www.ndd.ch
Description
Warning: Parameter out of Range (2).
Check patient technique, gas supply and valve assembly.
The alveolar helium concentration measured is out of range.
Check complete gas connection and valve assembly, and that test is performed
correctly.
Check patient technique, gas supply and valve assembly.
The expiratory CO concentration measured is out of range.
Check complete gas connection and valve assembly, and that test is performed
correctly.
Check patient technique, gas supply and valve assembly.
The alveolar CO concentration measured is out of range.
Check complete gas connection and valve assembly, and that test is performed
correctly.
Check patient technique, gas supply and valve assembly.
The alveolar volume (VA) is out of range.
Check complete gas connection and valve assembly, and that test is performed
correctly.
Check patient technique, gas supply and valve assembly.
The measured DLCO value is out of range.
Check complete gas connection and valve assembly, and that test is performed
correctly.
Unable to calculate FRC extrapol – Please check for leaks.
The extrapolated MBW volume (i.e., the volume that would be washed out after the
washout has been stopped) cannot be determined.
Do not stop the washout too early and/or check for leaks.
FRC extrapol too high – Do not stop the washout too early.
The extrapolated MBW volume (i.e., the volume that would be washed out after the
washout has been stopped) is greater than 1 liter.
Do not stop the washout too early and/or check for leaks.
Inspiratory gas leak detected.
Inspiratory gas leak detected.
Detailed criteria: The end-inspiratory molar mass deviates from the tracer gas molar
mass. This indicates that ambient air is inspired during the maneuver.
Check valves and that FRC barriette and spirette are properly inserted. Check that
nose clip is properly positioned and that patient is breathing normally.
High inspiratory or expiratory pressure detected.
High inspiratory or expiratory pressure detected. Detailed criteria: Peak pressure at
the flow sensor exceeds +/-5 mbar.
Check that O inlet pressure is set to 3 – 4 bar or 44 – 68 psi. Only minimal pressure
2
variations are allowed during the test. Ensure that patient's breathing is not too deep
or too fast, and is within the limits of ±1.5 L/s.
Check complete gas connection and valve assembly.
Side-stream flow is out of range (<6 mL/s or >12 mL/s).
Check complete gas connection and if patient tube (Maintenance kit) needs to be
replaced. Contact support if error persists.
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