12-30 CASE Revision C
2060290-201
Exercise Test Setup
TWA Tab
Click the TWA tab to open the window.
During the exercise test the TWA algorithm analyzes the data in the
background. In each of the selected leads, the algorithm calculates the
even and odd medians, the TWA value and the noise limit. The data is
saved at intervals of 15 seconds. Verify the TWA settings on this tab
before the test.
Note
During the test, TWA data records are saved at given points in time.
Each TWA data record provides the following information:
time it was saved
heart rate
TWA and noise values for each lead
A Select the TWA Heart Rate Limit (TWA values whose HR exceeds this limit are
excluded from calculation of the maximum TWA value and are identified with a
question mark on the display).
B Select the TWA Noise Limit (TWA values whose noise value exceeds this limit
are excluded from calculation of the maximum TWA value and are identified
with a question mark on the display).
C Heart rate: when first reached, the corresponding TWA value is stored
separately.
D Click down arrow to select the update factor.
E Select the check box to enable TWA analysis at test begin, or deselect.
F Click to reset the values to the defaults.
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