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3 Patient Alarms and INOPs
INOP Message, Indication
CANNOT ANALYZE ST
ECG EL. NOISY <ECG
Lead>
ECG EQUIP MALF
Numeric is replaced by -?-
INOP tone
<ECG Lead> LEAD OFF
!! <ECG Lead> LEAD OFF
!!! <ECG Lead> LEAD OFF
Numeric is replaced by -?-
INOP tone
ECG LEADS OFF
!! ECG LEADS OFF
!!!ECG LEADS OFF
ECG NOISY SIGNAL
INOP tone
!!ECG/AR ALARM OFF
ECG/ARRH ALARM OFF
!!ECG/AR ALARM OFF
EcgOut EQUIP MALF
INOP tone
LA LEAD OFF
Numeric is replaced by -?- for 10
seconds.
INOP tone
LL LEAD OFF
Numeric is replaced by -?- for 10
seconds.
INOP tone
RA LEAD OFF
Numeric is replaced by -?-
INOP tone
RL LEAD OFF
Numeric is replaced by -?- for 10
seconds.
INOP tone
SOME ECG ALRMS OFF
V LEAD OFF
Numeric is replaced by -?- for 10
seconds.
INOP tone
74
What to do
The ST algorithm cannot generate a valid ST value. Possible causes are large variations in the measured
ST values for consecutive beats, or ventricular paced beats. Review the ECG signal quality and the ST
measurement points.
If the patient has a ventricular pacemaker, ST analysis is not possible.
The ECG signal from the named ECG electrodes [RA, LA, LL, RL, V (or C)] is noisy. Check the ECG
connections and make sure that the electrode indicated is attached.
Contact your service personnel.
The ECG hardware is faulty.
Not all the required leads for ECG monitoring are connected. Check the ECG connections and make
sure that the electrode indicated by <ECG lead> [RA, LA, LL, RL, V or C] electrodes is attached. In
EASI mode, all 5 electrodes must be connected.
Check that all of the required ECG leads are attached, and that none of the electrodes have been
displaced.
The ECG signal is too noisy. Check that the electrodes are properly placed and have not dried out.
Remove any possible sources of signal noise (such as power cords) from the area around the cable and
the patient.
The ECG signal may be saturated or overloaded.
All ECG alarms have been switched off, or the HR alarm source is not ECG. To resume ECG alarm
generation, switch ECG alarms on or select ECG as the alarm source.
All ECG alarms have been switched off, or the HR alarm source is not ECG. To resume ECG alarm
generation, switch ECG alarms on or select ECG as the alarm source.
There is a problem with the device connected to the ECG Out connector. Contact your service
personnel.
The LA electrode has become detached from the patient or the lead set has been changed. Reattach
the electrode or select New Lead Setup in the Setup ECG menu to confirm the new lead set.
The LL electrode has become detached from the patient or the lead set has been changed. Reattach the
electrode or select New Lead Setup in the Setup ECG menu to confirm the new lead set.
The RA electrode has become detached from the patient or the lead set has been changed. Reattach
the electrode or select New Lead Setup in the Setup ECG menu to confirm the new lead set.
The RL electrode has become detached from the patient or the lead set has been changed. Reattach
the electrode or select New Lead Setup in the Setup ECG menu to confirm the new lead set.
This message appears (if configured to do so) when the on/off settings of the yellow arrhythmia
alarms differ from the current Profile.
The V electrode (IEC: C electrode) has become detached from the patient or the lead set has been
changed. Reattach the electrode or select New Lead Setup in the Setup ECG menu to confirm the
new lead set.

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