Pacer – ZOLL R Series Monitor Defibrillator Rev J User Manual
Page 498

C
HAPTER
13
T
ROUBLESHOOTING
13–4
www.zoll.com
9650-0912-01 Rev. K
Pacer
Symptom
Recommended Action
1. CHECK PADS message
•
Ensure therapy electrodes are connected to the 
OneStep cable.
•
Ensure electrode gel is not dry. Replace therapy 
electrodes if necessary.
•
Ensure good electrode-to-patient contact.
•
Check integrity of OneStep cable by plugging into test 
connector. CHECK PADS should disappear.
2. No stimulus marker (
) is
present on the ECG trace.
•
Ensure unit is in PACER mode.
•
Ensure PACER RATE (ppm) is set greater than patient 
heart rate.
3. No ventricular capture beat
appears after stimulus marker on 
ECG display.
•
Check patient’s pulse.
•
Increase output current.
•
Ensure therapy electrodes are making good contact 
with the patient.
•
Select different ECG Lead configuration.
•
Review therapy electrode placement.
4. Patient on “Standby” pacing gets
paced intermittently.
•
Ensure proper ECG electrode or OneStep Pacing/
Complete electrode connection and placement. If ECG 
lead wire comes off, pacer will automatically pace 
asynchronously.
•
Check ECG cable for damage.
•
Patient R-to-R interval varying. Pace rate close to 
patient’s heart rate.
•
Verify rate is set appropriately.
5. Heart rate display reads 0 with
proper pacing capture displayed 
on ECG trace.
•
Check patient’s pulse.
•
Select different ECG Lead configuration.
6. Bedside/Central Station/Telemetry
ECG display becomes erratic 
when pacing.
None, the patient monitor ECG inputs are overloaded by 
pacer signals. ECG can only be monitored by the R Series 
or pacing device while pacing.
