Instructions for use – Infinity
®
M300 and M300+ series – VG3.0 231
Problem solving
M300 – arrhythmia alarm messages
The following table lists arrhythmia alarm messages that may display on the M300.
Priority Message Problem Solution
!!! ASY The indicated arrhyth-
mia was detected.
– Check the patient and treat
if necessary.
– Some messages only ap-
pear when the full arrhyth-
mia option is installed and
activated.
!!! VF
!!!
VTach
1
!!
AIVR
1
!!
RUN
1
!!
SVT
1
!
BGM
1
!
CPT
1
Off
ARR artifact
1
Off
BRADY
1
Off
PAUSE
1
Off
TACH
1
None
ARR cannot learn (lead x)
2
After 100 beats, the
M300 cannot determine
the dominant normal
complex on any lead
selected for QRS pro-
cessing.
– Check the electrode
preparation.
– Reapply electrodes if nec-
essary.
None ARR relearning The M300 is learning
the patient’s QRS com-
plex to establish a refer-
ence template.
Informational message (no
action required).
!! PVC/min > (alarm limit) PVC value is above the
upper alarm limit.
– Check the patient and treat
if necessary.
– Reapply electrodes if nec-
essary.
1
These arrhythmia events can have one of three alarm priorities assigned (high, medium, or low) or is turned off.
The priority listed in this table is the default. For these arrhythmia events, you can deactivate alarms.
2
x represents an arrhythmia lead.
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