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Appendix

136 EasyOne Pro™ / EasyOne Pro™ LAB

NLHEP Interpretation

The following diagram outlines the criteria EasyOne Pro™ applies in the

automatic interpretation after NLHEP (see "Literature" on page 182 [4]).

Note: 1. LLN = Lower limit of normal

2. If FEV6 is selected instead of FVC, FEV6 will be used for the interpreta-

tion instead of FVC.

3. If the selected predicted value publication does not define a lower

limit of normal (LLN), LLN is calculated as predicted value - 1.645 x

RSD (residual standard deviation). If RSD is not defined, the LLN for

FEV1/FVC is set at 90% of the predicted value, the LLN for FEV1 at

80% of the predicted value and the LLN for FVC at 80% of the predic-

ted value.

4. If the quality grade is D and the results are within the limits, the fol-

lowing interpretation will be output: "normal spirometry, insufficient

test quality, data not suitable for comparison".

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