Chapter 6
Operation
1047358 Rev N Respironics V60 Ventilator User Manual 6-7
Using PPV
Follow these instructions to set up the ventilator in the PPV mode, referring to
Figure 6-3. For principles of operation, see “PPV mode (optional)” on page 4-13.
1. Open the PPV Settings window.
2. Set EPAP, O
2
, alarm limits, and backup settings to appropriate values.
The HIP alarm limit should be greater than Max P. See “Principles of
operation” on page 4-1 for a detailed explanation of these settings.
3. Set the Max V and Max P limits.
4. Set alarm limits to appropriate values. The HIP alarm limit should be
greater than the Max P.
About Max V and Max P alarms and alarm limits
Max V (PPV maximum volume limit) and Max P (PPV maximum pressure limit)
are used to prevent the delivery of excessive pressure or volume.
WARNING: PPV limits are not intended to be the primary ventilator alarms and should
not be substituted for the alarms found in the Alarm Settings window.
WARNING: To prevent the delivery of excessive pressure or volume, set the PPV
limits appropriately. Delivery of excessive pressure or volume can occur
from a sudden increase in mask leak, inappropriate settings, or a plugged
or kinked proximal pressure line. Conversely, insufficient treatment may
result if limits are set too low.
When the Max V (PPV maximum volume limit) is reached, the breath is
terminated and a message is displayed. After the limit is reached in three
consecutive breaths, the audible alarm sounds. A PPV waveform with Max V is
shown in Figure 6-1.
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