ResMed S9 VPAP Tx manual Treatment screen parameters, Parameter Modes Description

Treatment screen parameters

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

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