GE HEALTHCARE MAC 2000, Operator'S Manual

Page: 99 / 226

Stress Testing
Stress Option Keys–First Row (cont'd.)
Option Description
Gain Changes the magnitude of the ECG signal on the display or in the
report. The measurement is in millimeters per millivolt (mm/mV)
and includes the following options:
• 5 mm/mV
• 10 mm/mV
• 20 mm/mV
• 40 mm/mV
• 2.5 mm/mV
• Automatic
The larger the selected measurement, the larger the waveform.
Only the representation of the waveform changes; signal strength
is not affected.
NOTE:
If Automatic is selected, the system calculates the best gain
based on the peak-to-peak amplitudes of all the displayed
leads and the selected display format.
Low Pass Filter Toggles through the Low Pass Filter options: 20 Hz, 40 Hz, 100 Hz,
and 150 Hz. It defaults to the setting selected on the Stress
Setup window. (See “Stress ECG Settings” on page 133 for more
information.)
If the ADS filter type was selected in Stress Setup , this softkey is
displayed regardless of whether the filter is on or off. If the FRF
filter type was selected in Stress Setup , this softkey is displayed
only if the filter is off.
ECG Filter Type Toggles on and off the ECG filter type ( ADS or FRF ) selected on the
Stress Setup window. In addition, if the FRF filter type was selected,
toggling the filter off also displays the Low Pass Filter softkey.
More
Toggles between the first and second row of options.
Stress Text Option Keys—Second Row
Option Description
Pace Enhance Increases the readability of pacemaker ECGs. Options are On and
Off .
Printer Leads Selects which leads to include in the printout. Options are:
• First Six
• Second Six
• Rhythm Six
• 12
Use this setting only when conducting rhythm ECGs. For more
information, see
“Generating a Rhythm Report (Manual Recording)
” on page 81 .
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