Dräger Infinity Series User Manual page 121

Heart Rate (HR), Arrhythmia (ARR) and ST Segment Analysis (ST)
Displayed Message
Message: Arrhythmia
Relearning
Parameter value: LRN
Message: Asystole
Parameter value: ASY
Message: RL Lead Off *
HR parameter value:
<value>
ST<lead1>/ST<lead2>
parameter value: <blank>
Message: V Lead Off *
Message: V+ Lead Off
Message: RA Lead Off
Message: LL Lead Off
Message: LA Lead Off
Message: ECG Leads Off
HR parameter value: ***
ST<lead1>/ST<lead2>
parameter value: <blank>
* For all the electrode disconnected messages (V, V+ RA, LL, LA, RL) the parameter box will
show *** if this is the lead currently being monitored. If another valid lead is being monitored
(i.e. ECG 1&2) then the parameter value for HR, ST<lead1> and ST<lead2> will be <value>
Message: ARR Cannot
Learn Lead <lead>
Parameter value: <value>
VF4
Alarms and Messages
Possible Cause
The monitor is learn-
ing the patient's nor-
mal QRS complex to
use as reference.
No QRS detection for
the last 4 seconds.
Heart rate is below 15
beats/ minute.
The monitor has
detected a lead-off
condition for the cur-
rently processed lead.
The cause could be
one of the following:
Unplugged cable
Broken cable
Loose lead wire
Faulty lead wire
Dried out gel on the
electrode
Wrong cable type
selection.
The M /
ULTIMED
N pod may be
EOMED
defective.
Lead not connected.
Infinity Gamma Series
Suggested Action
• Wait until the message dis-
appears from the screen.
• Observe the patient and
treat if clinically indicated.
• Select a lead with at least
an amplitude of 0.5 mV.
• Select another lead to meet
the above criterion.
• Reposition or change the
electrodes if the amplitude
is still low.
• Use good skin preparation.
• Check the patient cable and
lead wires carefully.
• Check the M
ULTIMED
N pod. Replace pod
EOMED
if defective.
• Replace any cable or lead
wire that is suspect.
• Reapply gel on the elec-
trode or change the elec-
trode (if disposable).
• Select another ECG lead
for processing if the elec-
trode or lead cannot be
replaced.
• Check lead connections
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