Philips Respironics V60, User Manual

Page: 98 / 212

6-24
Operation
I-Time (Inspira-
tory Time) Time to deliver the required gas. Inverse ra-
tio ventilation is not allowed. 0.30 to
3.00 secs
Max E The maximum elastance (volume assist) value used by the PPV mode to overcome the
elastance of the patient's lungs. See also PPV % setting.
Applies in PPV mode only.
0 to
100 cmH
2
O/L
Max P (AVAPS
Maximum IPAP
Pressure) The maximum pressure to be applied.
NOTE: When you adjust the AVAPS minimum and maximum pressures, remember that
IPAP is adjusted to meet the target value. If the calculated target pressure is
outside of the minimum and maximum pressure range, the target volume will
not be achieve
d.
Applies in AVAPS mode only.
6 to 40 cmH
2
O
Max P (PPV
Maximum Pres-
sure Limit) The maximum pressure to be applied. When the limit is reached, the ventilator limits the
pressure and displays a PPV Max P alarm message. If the condition persists for three con-
secutive PPV inspirations, an audible alarm also sounds.
Applies in PPV mode only.
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.
5 to 40 cmH
2
O
Max R The maximum resistance (flow assist) value used by the PPV mode to overcome pulmo-
nary resistance. See also PPV % setting.
Applies in PPV mode only.
0 to 50 cmH
2
O/
L/s
Max V (PPV
Maximum Vol-
ume Limit) The maximum volume to be delivered. When the limit is reached, the ventilator terminates
the breath and displays a PPV Max V alarm message. If the condition persists for three
consecutive PPV inspirations, an audible alarm also sounds.
Applies in PPV mode only.
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.
200 to
3500 mL
Table 6-3: Modes and control settings with ranges (continued)
Setting Description Range
Shows where I:E
ratio becomes
inverse Resulting I:E
ratio