User's Manual

112 - K4 b
2
User Manual
Setting spirometry options
The software allows to configure some options selecting Configure from the Option
menu.
Spirometry
Automatic Interpretation
K4 b
2
has the function of interpreting each test performed by a patient visualising an
automatic diagnosis. The algorithm has been calculated basing on “Lung Function
Testing: selection of reference values and interpretative strategies, A.R.R.D. 144/
1991:1202-1218”.
The automatic diagnosis is calculated at the end of the FVC Test if:
• the automatic diagnosis option is enabled.
• the patient’s anthropometric data allow the calculation of the LLN (Lower Limit of
Normal range).
• at least one FVC test has been performed.
To enable/disable the automatic diagnosis:
1. Click on Enable Automatic Interpretation checkbox to enable or disable the
calculation and the visualisation of the automatic interpretation.
2. Select the LLN (Lower Limit of Normal Range) criteria among the ATS
(LLN=Pred-0.674*SD), ERS (LLN=Pred-1.647*SD) or 80%Pred (LLN=Pred*0.8)
specifications.
Quality control
K4 b
2
allows a quality test control. The calculation has been carried out referring to
“Spirometry in the Lung Health Study: Methods and Quality Control, A.R.R.D. 1991;
143:1215-1223”. The messages concerning the quality control are shown at the end of
the test.
To enable/disable the quality control, click on Enable Quality Control checkbox.