ResMed Astral Series Clinical Guide

Appendix B: Ventilation parameters
174
Ventilation displayed parameters
The following therapy parameters are displayed on the device but cannot be changed directly. They are
determined by the adjustable parameters and internal algorithms.
Parameters
Valve Ventilation and Mouthpiece
Circuit
Leak Ventilation Setting
ACV
P(A)CV
PS
P-SIMV
V-SIMV
CPAP
(S)T
P(A)C CPAP
iVAPS
I:E Ratio
 

Displayed if Respiratory Rate
not set to Off
PIF
(L/min)


When Volume Breath option is
set to Ti, PIF is display only.
Ti
(sec)


When Volume Breath option is
set to PIF, Ti is display only.
MV
(L/min)

Displayed in iVAPS Settings
page
Average Vt
(mL)

Displayed in iVAPS Settings
page
Average Vt/kg
(mL/kg (IBW))

Displayed in iVAPS Settings
page
Supplementary Features
The following table indicates the supplementary features applicable to each ventilation mode. The
adjustable parameters, the available setting range and default are displayed.
Features
Valve Ventilation and Mouthpiece
Circuit
Leak Ventilation Setting
ACV
P(A)CV
PS
P-SIMV
V-SIMV
CPAP
(S)T
P(A)C CPAP
iVAPS
Manual Breath
    
Off / On [Off]
Manual Breath
Magnitude
(%)
    
100 to 250 [150]

ResMed Astral Series Specifications

General

Type	Ventilator
Display	color LCD
Connectivity	USB
EPAP	0 to 25 cm H2O
Rise Time	Adjustable
PEEP	0 to 25 cm H2O
FiO2 Monitoring	Yes, with optional oxygen module
Battery Backup	Internal and external battery options
Oxygen Capability	Yes, with optional oxygen module
Alarms	Low battery
Pressure Support	0 to 30 cm H2O