MAC ® 1200 Operations Manual - Jaken Medical...

Arrhythmia Mode
7 Arrhythmia Mode
GE marquette MAC 1200 John Doe
7.1 Some Basic Facts
In Arrhythmia Mode, the MAC 1200 continuously
scans the ECG for arrhythmias.
Figure 7-1. Event recording
Note
After starting the program, press format/
speed to select a
continuous recording with a speed of 5 mm/s (configurable).
If the unit identifies an arrhythmic event,
it will automatically switch to the fast paper speed.
With the same key format/
speed
, the trend recording can be
stopped. The unit can be set up to automatically start
a trend recording when the Arrhythmia Mode is
initiated.
Parameter
Report sequence
System defaults Options
STD_C (chest
leads V1
through V6)
STD_RED (I, II,
III, V2, V4, V6)
STD_LI, (I, II, III,
aVR, aVL, aVF)
CABR_LI (aVL, I,
-aVR, II, aVF, III)
HIGH_C (V1'
through V6')
Gain 10 mm/mV "*auto", 5, 20, 40
mm/mV
Muscle Filter No Yes
Muscle Filt. Freq. 40 Hz 20 Hz
AC Filter Yes No
Trend Rec. No Yes
Arrhy Data unequal all, no
Episodes chron. prio, ventr., no
From six simultaneously acquired leads, the MAC
1200 automatically selects the two that provide the
best signal for analysis.
When the analysis algorithm detects an arrhythmia,
the event is recorded with "context" (Figure 7-1).
The length of the recording varies with the duration
of the event episode. In the setup menu (section 9.4
"Arrhythmia Mode") you determine the conditions
for a recording:
− the recorder starts each time it detects a singlebeat
event - all
− the recorder starts each time it detects an event
different from the previous event - unequal
− the recorder does not start at all - no.
Some of the system settings can be customized.
They are labeled with "configurable". The following
information refers to a unit with the system defaults
(see table at left). For instructions on changing the
system setup, refer to section 9.4 "Arrhythmia
Mode".
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