GE ApexPro Operator's Manual page 198

Troubleshooting
Interface connector ports
Problem: Inaccurate pacemaker detection
Notes
D-4
V1
RA
RL
The right arm electrode is moved down to the fifth intercostal space, and the left leg
electrode is moved up to the fifth intercostal space.
NOTE
After all electrodes are in place, ensure that a minimum of 1/2 mV of signal is
present on each lead (I, II, III, V).
Pace detection performance is optimized with proper lead application and correct use
of the serial interface connector ports. If you are experiencing degraded pace
detection performance, verify that all leads are properly attached to the patient and
verify that any connected serial device(s) are in the appropriate serial interface
connector ports.
The inside port, labeled 2 on the dust cover, is for use with continuous
monitoring serial devices, such as SpO2.
The outside port, labeled 1 on the dust cover, is for use with episodic monitoring
serial devices, such as NBP.
Solution: Use pacemaker processing:
1. Click on the patient's ECG tab.
2. In the Detect Pace section, select either Pace 1 or Pace 2.
Solution: Exchange the right and left arm leads and perform a relearn.
In general, BE AWARE that a pacemaker pulse could be falsely counted as a
QRS during asystole.
Pace 1 mode analyzes the presence of a pacer spike, assesses the waveform for
residual pacemaker energy, and determines the presence of an R wave following
the pacer spike. If an event occurs during the first few milliseconds following the
pacer spike, it will be counted.
ApexPro™
LA
LL
R
N
L
C1
F
369B, 374B
2001989-200E