User Manual

Therapy
4-28 LIFEPAK 20e Defibrillator/Monitor Operating Instructions
5 Monitor screen displays
distortion while pacing.
ECG electrodes not optimally
placed with respect to pacing
electrodes.
• Reposition electrodes away
from pacing electrodes.
Patient response to pacing is
highly variable with respect to
capture threshold and ECG
distortion.
• Select another lead (I, II, or
III).
• Consider changing pacing
rate.
6 Capture does not occur
with pacing stimulus.
Current (mA) set too low. • Increase pacing current.
(Administer sedation/
analgesia as needed.)
7
CONNECT ELECTRODES
message appears.
Pacing cable or electrode
disconnected.
• Reconnect and set current.
Electrodes not adhering to skin. • Prepare skin.
Electrodes outdated. • Apply new electrodes and set
current.
8 Pacing stops
spontaneously and
PACER
FAULT
message appears.
Internal error detected. • Cycle power and start pacing
again.
• Obtain service by qualified
service personnel.
9
REMOVE TEST PLUG
message appears.
Test plug connected to therapy
cable.
• Disconnect test plug from
therapy cable.
• Connect electrodes to
therapy cable.
10 Intrinsic QRS complexes
not sensed when pacing.
ECG amplitude too low to be
sensed.
• Select another lead.
Intrinsic QRS complexes are
occurring during pacemaker's
refractory period.
• Adjust pacing rate.
11 Pacing starts
spontaneously.
Patient’s heart rate falls below
set pacing rate.
• Appropriate pacemaker
function assess patient.
During standby pacing, ECG
lead disconnects.
• Reconnect ECG lead.
12 Set pacing rate (ppm)
and ECG paced rate do
not appear to match.
Internal error detected. • Print ECG and calculate the
pace rate.
13 Improper sensing
(for example, sensing on
T-waves).
QRS complex too small.
T-wave too large.
• Select another lead.
Table 4-4 Troubleshooting Tips for Noninvasive Pacing (Continued)
Observation Possible Cause Corrective Action