ZOLL M Series Defibrillator Rev YH - Manual (Page 59)

ECG Monitoring
9-3
Alarms
Setting Alarm Limits
Unless configured otherwise, heart rate alarms are
preset at 30 bpm (bradycardia) and 150 bpm
(tachycardia). Refer to the Alarms Section of the
Physiological Monitoring Parameter Insert(s) for further
details specific to those parameters. (See the M Series
Configuration Guidefor details on setting power-up alarm
limits.)
In order to set alarms the following sequence is used:
1. Press the Alarms softkey located below the display to
view the Alarm Set screen and softkeys.
2. Press the SELECT PARAM softkey. This will scroll the
highlighted area among the different possible vital
signs. Select the state field for the parameter you wish
to alter. The State field will be highlighted along with
the selected vital sign field.
3. Press the Inc or Dec softkeys to select “ENABLE”,
“DISABLE”, or “AUTO” in the State field. Pressing the
Next Field softkey when either “ENABLE or
“DISABLE” has been chosen will set the selected State
and move the highlight to the next field (Low limit field).
When “AUTO” has been selected and the Next Field
softkey is pressed, the unit will set the lower and upper
limits to 80% and 120% of the patient’s currently
measured heart rate if valid measurements are present
for the vital sign (Refer to appropriate Physiological
Monitoring Parameter Insert(s) for differing
percentages). The highlight then shifts to the next
Parameter field.
Note: To alter the Low and High limits for any parameter
when these limits have previously been set using
the “AUTO” State, press the Inc or Dec softkeys to
sequence through the “ENABLE” and “DISABLE”
settings until “AUTO” is selected again and then
press the Next Field softkey. The Low and High
limits will automatically reset based upon the
currently measured value of the selected
physiological parameter.
4. If “AUTO” was not selected, press the Inc or Dec
softkeys to set the Low alarm limit value. Press the
Next Field softkey to confirm the selected value and
move the highlight to the next field (High limit field).
Repeat the step above for the High limit field.
5. Press the Return softkey to set all values and return to
normal operating mode.
Alarm Function
The M Series device has three levels of alarms.
1. High Priority: If enabled, these alarms reflect
physiological parameters that are out of bounds. They
will cause a continuous audio tone, highlight the
alarming parameter and flash the associated alarm
bell.
2. Medium Priority: These alerts reflect equipment
related user correctable faults such as LEAD OFF and
CHECK SPO2 SENSOR. They will cause a two beep
audio tone and display a message for a timed period.
3. Low Priority: These are informational messages to
the user only and have the same audio indication as
the Medium priority alarms.
Alarm Limits
The Low Heart Rate Alarm Limit range is 20 bpm to
100 bpm with a default setting of 30 bpm.
When a patient’s heart rate is being monitored, using
ECG, the High Heart Rate Alarm Limit range is 60 to
280 bpm with a default setting of 150 bpm. When heart
rate is being monitored using pulse oximetry, however,
the maximum High Heart Rate Alarm Limit is lowered to
235 bpm automatically if it was previously set higher for
ECG monitoring. The original High Alarm Limit setting
will be restored when ECG monitoring resumes.
Suspending and Silencing Alarms
When a high priority alarm occurs, a continuous audible
alarm tone sounds, the M Series unit highlights the value
of the alarming parameter on the display screen, and the
bell icon associated with that parameter flashes.
You can either suspend the alarm tone for 90 seconds or
you can silence the alarm tone.
Suspending Alarm Tones
To suspend the alarm tone for 90 seconds, press and
release the ALARM SUSPEND button in less
than 1 second. The alarm tone stops, the
M Series unit displays an “X” across the
alarm’s flashing bell icon, and the value of the
alarming parameter remains highlighted. (If you press
the ALARM SUSPEND button again, alarm processing
is reactivated.)
After 90 seconds, if the physiological parameter remains
at a value that triggers the alarm, the unit sounds
the alarm tone again.
If the alarm condition “clears” (the physiological
parameter returns to a value within range) after
you suspend the alarm tone, the M Series unit resets the
alarm and displays the bell icon (no flashing, no “X”). The
alarm parameter displays normally (no highlighting).
If a second, different alarm occurs after you suspend an
alarm tone, you can suspend the alarm tone for that
second parameter by pressing and releasing the
Select
Param Return
Inc
>
Next
Field
Dec
<
MORE
MEAN ENABLE 60 130
DIASTOLIC ENABLE 50 110
ENABLE 60 160
ECG HR ENABLE 30 150
SYSTOLIC
Parameter State Low High