Use Instructions

Page 115/233
MasterScope - Instructions for Use
Version 03.00 • Date 19FEB2020
With mouse over on the effort number (here 3rd effort) the date/time of the
measurement will be displayed and if the effort was deselected by the system or by
the user (if applicable).
Colors above the effort number matching the color of the flow/volume loop for
easy identifing the loop vs. the parameters. Dashed color indicates the effort was
deselected while a solid colored line indicates the effort is valid.
With mouse over of the error codes (here in best column error code A and C) the
description of the error code will be displayed.
9.6 ATS Criteria (ATS/ERS 2005)
Forced Spirometry: Acceptability of individual efforts
• A plateau was detected at the end of the expiration
The volume change in the last second of expiration is less than 25 mL.
• Expiration time is long enough (6 sec)
The duration of expiration is greater than 6 seconds.
• Back-extrapolated volume is not excessive
The back extrapolated volume is less than 150 mL or less than 5% of FVC.
• No late peak flow was detected
The peak flow is reached earlier than 120 ms after extrapolated start of the
maneuver. Indicates a poor effort.
• No coughing was detected in the first part of the expiration
Coughing during the first second of the maneuver affects the measured FEV1
value and other parameters.