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Defibrillation
5
User guide
Synchronised defibrillation
5.4
A
rt.
no.
: 0-48-
0227
Rev.:
g
DEFIGARD/PHYSIOGARD Touch 7
5.4 Synchronised defibrillation
5.4.1
Warning erroneous triggering
5.4.2
Setup switching from synchronized to unsynchronized mode
Erroneous triggering, interpretation hazard
– For synchronised defibrillation, the ECG electrodes should be applied as far
from the defibrillation electrodes as possible (e.g. on the limbs).
– Use only silver/silver-chloride electrodes, if you acquire the ECG via separate
ECG electrodes. These electrodes prevent polarisation voltages which may be
caused by the defibrillation shock, resulting in an ECG trace on the monitor
screen or recording that simulates cardiac arrest.
Disturbed ECG trigger signal! Signal noise may disturb the ECG signal and
cause artefacts. This must be considered chiefly in the synchronised mode and
in demand pacing. For this reason, the following should be observed:
– Do not touch the device during defibrillation to prevent electrostatic noise
– Keep the patient cable away from power cords, transformers etc.
To achieve adequate ECG signal quality for reliable triggering, ensure that
– the ECG signal is free of artefact
– there are no major fluctuations in amplitude
– the displayed trigger pulses are positioned exactly above the R-wave
The synchronized mode
(1)
is manually activated (
Sync ON/OFF
). Depending on the
factory setup, the synchronized mode stays activated after delivering the shock (Sync
after sync shock =Yes) or switches back to unsynchronized shock (Sync after sync
shock =
No
). The current setting must be communicated to the user.
The default setting is “Sync after sync shock =
No
”:
the manual activated synchronized mode will be
deactivated
after delivering a
synchronized shock. To deliver a second synchronized shock, it is important to
activate it again.
If the admin setting is “Sync after sync shock =
YES
”:
the manual activated synchronized mode is
maintained
after delivering a
synchronized shock. To deliver a unsynchronized shock, it is important to
deactivate it again.
Event
CPR Guide
Metronome
1