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ECG Display
To display surface ECG signals on the PRM without device interrogation,
select the ECG icon on the startup screen (Figure 5). Connect the patient
leads; for instructions on proper patient cable connections, refer to “EX-
TERNAL CABLE CONNECTIONS” on page 22. The PRM can display
three surface traces of up to six limb leads or one chest lead. The top dis-
played lead will be annotated with the pacing spike marker if that feature
is selected. To display the pacing spike markers correctly, the Lead II
electrodes must be connected to the patient regardless of which lead is
displayed. The heart-rate indicator in the upper-right corner of the startup
screen will display the intrinsic ventricular rate as the trace runs.
select the ECG icon on the startup screen (Figure 5). Connect the patient
leads; for instructions on proper patient cable connections, refer to “EX-
TERNAL CABLE CONNECTIONS” on page 22. The PRM can display
three surface traces of up to six limb leads or one chest lead. The top dis-
played lead will be annotated with the pacing spike marker if that feature
is selected. To display the pacing spike markers correctly, the Lead II
electrodes must be connected to the patient regardless of which lead is
displayed. The heart-rate indicator in the upper-right corner of the startup
screen will display the intrinsic ventricular rate as the trace runs.
Figure 5. The ECG screen, as accessed from the startup screen.
The following screen buttons can be used to change the values and ap-
pearance of the traces:
pearance of the traces:
•
Lead Selection Buttons—Select the lead traces to be displayed.
•
Speed Buttons—Select the desired speed button on the ECG
display: Pause (||) (to freeze the trace), Play (>), or Fast-Forward (>>).
display: Pause (||) (to freeze the trace), Play (>), or Fast-Forward (>>).
•
Printed Surface Gain—Select the appropriate value to adjust the
surface gain of the traces that are captured on printouts.
surface gain of the traces that are captured on printouts.
•
Filter—Select On to minimize noise on the surface ECG.
•
Pacing Spike Display—Select On to show detected pacing spikes,
annotated by a marker on the top waveform.
annotated by a marker on the top waveform.
NOTE: The values as set up on the startup screen will be the defaults
used for the application traces. The corresponding values can be
changed from the Trace Selections screen while in the application. For
detailed application programming instructions, refer to the System Guide
for the Guidant pulse generator being interrogated.
used for the application traces. The corresponding values can be
changed from the Trace Selections screen while in the application. For
detailed application programming instructions, refer to the System Guide
for the Guidant pulse generator being interrogated.
Speed Buttons