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10.3 Pacer Mode
• Use demand mode pacing whenever possible. Use fixed mode pacing if noise or artifact interferes
with proper sensing of R-wave or when monitoring electrodes are not available.
• During fixed mode pacing, R-wave markers do not appear on the paced beats.
• During demand mode pacing, spontaneous beats may be presented which are not associated with
the delivery of pace pulse. If the patient’s heart rate is above the pacer rate, pace pulses are not
delivered and, therefore, pace markers do not appear.
10.4 Preparing for Pacing
10.4.1 Demand Mode Pacing
• Routinely assess the patient’s cardiac output.
• Pacing will not start if there is a problem with the pads cable connection, pad patient connection, or
ECG monitoring electrodes connection. If any situation occurs, a message will appear in the pacer
information area to alert you that a lead is disconnected or that the electrode pads have a poor
connection.
10.4.2 Fixed Mode Pacing
• Use care when handling the electrode pads on the patient to avoid shock hazard during pacing.
• If you are using the pacing function with battery power and the Low Battery alarm is presented,
connect the equipment to external power or install a fully charged battery.
• The monitoring or pacing function may be unstable in the presence of ESU or other electronic
devices.
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