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• conditions predisposing to a risk of aspiration of gastric contents
• impaired ability to clear secretions
• 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 III ST-A.
• Advice contained in this manual should not supersede instructions given by
the prescribing physician.
• The VPAP III ST-A should only be used with masks (and connectors)*
recommended by ResMed, or by your physician or respiratory therapist. A
mask should not be used unless the VPAP III ST-A is turned on and operating
properly. The vent hole or holes associated with the mask should never be
blocked.
Explanation of the warning: The VPAP III ST-A is intended to be used with
special masks (or connectors)* which have vent holes to allow continuous
flow of air out of the mask. When the device is turned on and functioning
properly, new air from the device flushes the exhaled air out through the
mask vent holes. However, when the device is not operating, enough fresh
air will not be provided through the mask, and the exhaled air may be
rebreathed. Rebreathing of exhaled air for longer than several minutes can, in
some circumstances, lead to suffocation. This applies to most models of
CPAP and bilevel devices.
*
Ports may be incorporated in the mask or in connectors that are near the mask.
•
In the event of power failure or machine malfunction, remove the mask.
• Children who are unable to remove the mask should be attended at all times
during therapy.
• At low EPAP pressures, the flow through the exhalation port may be
inadequate to clear all exhaled gas from the tubing. Some rebreathing may
occur.
• The air flow for breathing produced by this device can be as much as 11
o
F
higher than the temperature of the room. Caution should be exercised if the
room temperature is warmer than 90
o
F.
• The VPAP III ST-A can be set to deliver pressures up to 30 cm H
2
O. In the
unlikely event of certain fault conditions, pressures up to 40 cm H
2
O are
possible.
• The VPAP III ST-A is not suitable for use in the vicinity of flammable
anesthetics.
• The VPAP III ST-A should not be used with anesthetized patients, whose
breathing depends on artificial ventilation.
• If oxygen is used with this device, the oxygen flow must be turned off when
the device is not operating.