Testing The Alarms - ResMed Stellar 150 Clinical Manual

Alarm Setting
Apnea
Alarm Volume
1 When the High Leak or Low Min Vent alarms are set to ON, SmartStop is automatically disabled.

Testing the alarms

When the device is turned on, the Alarm LED and the Alarm mute key LED will flash, and the
alarm will sound to confirm that the alarm is working. If required, you can test the alarm
manually by holding down the Alarm mute button for at least three seconds when therapy is not
running and no alarm is active.
Initial setup
1. Turn off all configurable alarms.
2. Set up the device with the air tubing attached, but no mask.
3. Set Ramp Time to 0 mins.
4. Set SmartStart/Stop to Off.
Alarm simulation
Alarm
High Pressure
1. On the Setup, Clinical Settings menu, set Mode to T and EPAP to
4 cm H
2. Set Pressure Support to 10 cm H
3. On the Setup, Alarm Settings menu, set All alarms off to Yes.
4. Now set the High Pressure Alarm Setting to 7 cm H
the alarm to be On.
5. Block the air tubing.
6. Start ventilation.
Low Pressure
1. Set the Low Pressure Alarm to -2 cm H
2. Set IPAP and EPAP to 25 cm H
3. Start ventilation.
4. Partially block the open end of the tube with your hand. The alarm
activates within 15 seconds. If the Blocked Tube or Circuit
Disconnected Alarm activates repeat the test.
5. Stop therapy.
Low Min Vent (Low minute ventilation)
1. Set the Low Min Vent Alarm to 30 L/min.
2. Start ventilation.
3. Partially block the open end of the tube with your hand so that the
measured MV in the therapy status bar displays lower value than
30 L/min. The alarm activates within 30 seconds. If the Blocked
Tube or Circuit Disconnected Alarm activates repeat the test.
4. Stop therapy.
Default
On, 20 s
High
O.
2
2
Description
Sets the maximum apnea time. Activates when there is no
inspiration (either patient or machine triggered) detected
from the previous beginning of inspiration. Two consecutive
inspirations (either patient or machine triggered) resets the
Apnea alarm.
Range: On, Off, 10–60 sec, 1 sec increments
Sets the alarm volume.
Options: Low, medium, high
O.
2
O, and change
2
O.
2
O.
Testing interval
On patient titration.
On patient titration.
On patient titration.
39
Setup menu