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• hypotension or significant intravascular volume depletion
• pneumothorax or pneumomediastinum
• recent cranial trauma or surgery.
Warnings
• The entire manual should be read before using the VPAP.
• Advice contained in this manual should not supersede instructions given by
the prescribing physician.
• The VPAP should be used with masks and accessories recommended by
ResMed or the prescribing physician. Use of incorrect masks and
accessories may adversely affect the function of the VPAP.
• The VPAP is designed for use with masks that allow exhaled gases to be
flushed out through vent holes. Exhaled gases will be rebreathed if the mask
is worn with the machine turned off, or the vent holes are occluded. If this
occurs over prolonged periods, suffocation may occur.
• In the event of power failure or machine malfunction, remove the mask.
• The VPAP can be set to deliver pressures up to 25 cm H
2
O. In the unlikely
event of certain fault conditions, pressures up to 40 cm H
2
O are possible.
• The VPAP is not suitable for use in the vicinity of flammable anaesthetics.
• The VPAP should not be used with anaesthetised patients, whose breathing
depends on artificial ventilation.
• If oxygen is used with the VPAP, the oxygen flow should be stopped when
the device is not operating. If oxygen flow continues when the device is not
operating, oxygen may accumulate within the device and create a risk of fire.
• Do not use the VPAP if there are obvious external defects, unexplained
changes in performance or unusual noises.
• Do not open the VPAP case. There are no user serviceable parts inside.
Repairs and internal servicing should only be performed by an authorised
service agent.
Cautions
• At low EPAP pressures, the flow through the mask vent holes may be
inadequate to clear all exhaled gases, and some rebreathing may occur.
• The air flow for breathing produced by this device can be as much as 6
o
C
higher than the temperature of the room. Caution should be exercised if the
room temperature is warmer than 32
o
C.
Note: The above are general warnings and cautions. Further specific warnings,
cautions and notes appear next to the relevant instructions in the manual.