Welch Allyn CardioPerfect Workstation Exercise ECG Module - User Manual - Manual (Page 35)

CardioPerfect Workstation
Exercise ECG Module - User Manual
DIR 80012335 Ver. E 35 / 83
Regardless of the filter used, the rhythm characteristics of the ECG are accurately recorded
and do not affect the interpretation algorithm.
3.6 Work with the 2x6, 4x3, and Rhythm views
2x6 view
The 2x6 view displays the 12 leads in two columns and six rows. This is a convenient format
for comparing leads at specific points in the test, such as the end of stages, the point where
the maximum ST level, the highest blood pressure or the highest workload were measured.
The view can be simultaneous or sequential, selectable from the shortcut menu.
4x3 view
The 4x3 view displays a 12 lead-ECG strip. The leads are shown in a 4x3 configuration with a
rhythm strip at the bottom of the view. The view can be simultaneous or sequential.
The rhythm lead can be set in the general XECG settings.
Rhythm view
The Rhythm view displays leads in different groupings, so that you can easily switch between
the most common groups.
3.6.1. Use filters
When viewing the 2x6 or 4x3 view you can use two filters:
Baseline filter
Muscle filter
Both filter options can be found in the Action menu. Select the appropriate filter to enable it.
The filter option will be marked with a check. To disable the filter simply select it again.
Note: When you enable a filter from the Action menu it will also affect the full disclosure and
4x3 or 2x6 view.
Note: You can tell which filters are enabled in the portion of the full disclosure, 2x6, and 4x3
views by looking at the frequency response displayed. If the baseline filter is
enabled, the lower frequency will be 0.5Hz. If the muscle filter is enabled, the upper
frequency will be either 25 or 35 Hz (depending on the settings).
If accurate ST segment contours are required for ECGs, do not use the 0.5 Hz baseline
wander filter. This filter suppresses baseline wander to the extent that it may alter the ST
segment. Instead, configure your cardiograph to operate without the baseline wander filter.
Regardless of the filter used, the rhythm characteristics of the ECG are accurately recorded
and do not affect the interpretation algorithm.