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14
Treatment screen parameters
Parameter Modes Description
CPAP
AutoSet
VAuto
S
ST
T
PAC
iVAPS
ASV
ASVAuto
Leak
9 9 9 9 9 9 9 9 9 9
Estimate of the total rate of
air escaping due to mouth and
unintentional mask leaks, expressed in
L/min (5-breath moving average).
Minute Ventilation (MV)
9 9 9 9 9 9 9 9 9 9
Volume of air breathed in, or out within
any 60-second period, expressed in
L/min (5-breath moving average).
Target Minute
Ventilation (TgMv)
9 9
Minute ventilation the device is
attempting to achieve. Pressure support
increases if the minute ventilation falls
below the target,and decreases if it
goes above the target.
Respiratory rate (RR)
9 9 9 9 9 9 9 9 9 9
Frequency of breathing, expressed
as the number of breaths per minute
(5-breath moving average).
Tidal volume (Vt)
9 9 9 9 9 9 9 9 9 9
Volume of air inspired or expired in one
respiratory cycle (breath), expressed in
mL (5-breath moving average).
Pressure support (PS)
9 9 9 9 9 9 9 9
Difference between IPAP and EPAP.
Alveolar minute
ventilation (Va)
9
Minute volume without dead space,
expressed in L/min.
Target alveloar
ventilation (TgVa)
9
Target alveolar minute ventilation that
determines the amount of pressure
support required, expressed in
L/min.
Ti
9 9 9 9 9 9 9 9
Duration of inspiration (ie, the
respiratory flow into the lungs),
expressed in seconds (5-breath moving
average).
I:E
9 9 9 9 9 9 9 9
Inspiration to expiration ratio measured
by the device (5-breath moving
average).
Ti Max
9 9 9 9
Maximum inspiration time in seconds
Ti Min
9 9 9 9
Minimum inspiration time in seconds.
% Spontaneous
Triggering or Cycling
(%Spont Trig or
%Spont Cyc)
9 9 9 9 9
Percentage of breaths that are
spontaneously triggered or cycled
(average of the last 20 breaths).
In PAC mode, there is no spontaneous
cycling.
Trigger/Cycle indicators
(Timed, Ti Max or
TiMin)
9 9 9 9 9 9
Indicates a patient or device
triggered/cycled breath. In ST mode,
Timed indicator is left blank if it is a
spontaneous breath.