Breas Vivo 45 LS User Manual page 28

Risk of Insufficient Ventilation
Insufficient ventilation may cause transient hypoxia.
The use of equipment such as endotracheal tubes, oral/nasal tubes, adaptors etc.
with small inner diameters or high resistance filters, humidifiers etc. increase the
resistance in the patient circuit which may interfere with the operation of the patient
disconnect function. It may also interfere with the device trigger function.
This impact can be reduced by conducting a pre-use test.
Make sure that the exhalation valve or the leakage port never is blocked or
obstructed.
Risk of Constriction
Entanglement with cables or tubing constricting airways may cause asphyxiation.
Do not leave long lengths of air tubing or cables around the top of the bed. They
could twist around the patient's head or neck while sleeping.
Always follow the instructions of the mask manufacturer.
The ventilator is equipped with a rebreathing alarm. The alarm is not a substitute for
operator vigilance in ensuring that the leakage port or exhalation valve remains clear
at all times. Periodically check the patient circuit during therapy.
In general, as pressure decreases, the potential of rebreathing increases. Lower pres-
sures produce less flow through the leakage port which may not clear all CO
the circuit to prevent rebreathing.
Risk of Excessive Carbon Dioxide
Insufficient carbon dioxide removal may cause arterial acidemia.
For reducing the risk of rebreathing CO
as near the patient interface as possible. This is even more important for treatments
with low pressure, as this reduces the flow through the leakage port.
WARNING!
Risk of Cross-Contamination
Patient circuits might get contaminated by exhaled gases. To avoid cross-contamina-
tion, always use a properly cleaned or a new patient circuit when the Vivo 45 LS is to
be used by a new patient.
NOTE
For masks and accessories, always follow the manufacturer's instructions.
28 Safety Information
User manual
, make sure that the leakage port is located
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