Philips HEARTSTART XLT M3500B Instructions For Use Manual page 60

Troubleshooting
4-8
Table 4-5 Troubleshooting Tips (Continued)
Situation
Poor ECG signal
quality
QRS beeper inau-
dible or beeps do
not occur with
each QRS com-
plex.
Cause
The monitoring elec-
trodes are not making
proper contact with the
patient.
The monitoring elec-
trodes are outdated or
dried-out.
Radio frequency inter-
ference (RFI) is causing
artifact.
The QRS beeper is con-
figured to Off.
The amplitude of the
QRS complex is too
small to detect.
Solution
Check that the monitoring
electrodes are properly
applied. If necessary, pre-
pare the patient's skin and
apply new electrodes.
Check the date code on
the electrodes. Do not
open the electrode pack-
age until immediately
prior to use.
Relocate or turn off equip-
ment that may be causing
RFI.
Check that the QRS
beeper is configured to
On.
Adjust the volume.
Adjust the size of the
ECG.
Monitoring the ECG