ResMed VPAP III ST-A Manuel Utilisateur page 42

Warning Signal
Sound: Single
intermittent tone
LCD: LOW MV ALARM
LED: Yellow flashing
Alarm: Low minute
ventilation
Sound: Single
intermittent tone
LCD: NVENT ALARM
LED: Yellow flashing
Alarm: Non-vented mask
36
Cause
Minute ventilation
level has dropped
below the alarm
setting level.
• Connection of a
non-vented mask.
• Mask expiratory
flow port (vent)
may be blocked.
• Use of
supplemental
oxygen with a
vented mask.
Action
Contact your clinician.
• Ensure your mask has an expiratory
flow port (vent).
• Ensure your mask expiratory flow
ports (vents) are not blocked.
• Contact your clinician.