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ResMed Astral Series Clinical Guide

ResMed Astral Series
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Accuracy of controls
English 145
Notes:
All flows and volumes are measured at BTPS conditions.
To achieve specified accuracies, a successful Learn Circuit must be performed prior to measurement testing.
Specified accuracies exclude mask compliance.
Pressure may be displayed in cmH
2
O, hPa or mbar. The conversion factor of the pressure units is 1. This means
the displayed pressure will have the same values regardless of the unit selected.
Accuracy of controls
The following table shows the setting range and accuracy for the adjustable parameters.
Parameter
Range
Resolution
Accuracy
Delivered Pressure
2 to 50 hPa
±(0.5 hPa + 5% of target)
IPAP
4 to 50 hPa
0.2 hPa
Refer to delivered pressure
EPAP
2 to 25 hPa
0.2 hPa
Refer to delivered pressure
CPAP
3 to 20 hPa
0.2 hPa
Refer to delivered pressure
PEEP
Off, 3 to 20 hPa
0.2 hPa
Refer to delivered pressure
PS
2 to 50 hPa (Valved circuits)
0 to 50 hPa (iVAPS)
0.2 hPa
Refer to delivered pressure
P control
2 to 50 hPa
0.2 hPa
Refer to delivered pressure
Vt (Tidal volume)
Adult: 100 to 2500 mL
Paed: 50 to 300 mL*
10 mL
5 mL
Valved circuits:
±12 mL or 10%, whichever is greater
Safety Vt (Safety tidal
volume)
Adult: 100 to 2500 mL
Paed: 50 to 300 mL*
10 mL
5 mL
Vented circuits:
±15 mL or 15%, whichever is greater
Valved circuits:
±12 mL or 10%, whichever is greater
Target Va
1 to 30 L/min
0.1 L/min
±(0.1 +30% of target) L/min;
Resp.rate < 12 bpm
±(0.1 +15% of target) L/min;
Resp.rate 12 bpm
Resp. rate
Adult: Off, 2 to 50 bpm
Paed: Off, 5 to 80 bpm
1 bpm
±2%
Target patient rate
Adult: 8 to 30 bpm
1 bpm
±2%
Ti (Inspiration time)
(A)CV, V-SIMV (mandatory
breaths):
0.3 to 3.0 sec
P(A)CV, P-SIMV (mandatory
breaths):
0.2 to 5.0 sec
P(A)C:
0.3 to 4.0 sec
Adult: 0.1 sec
Paed: 0.05 sec
±(20 ms + 5% of setting)
PIF (Peak Inspiratory Flow)
(A)CV, V-SIMV (mandatory
breaths):
Adult: 10 to 120 L/min
Paed: 5 to 60 L/min
1 L/min
N/A
Cycle (expiratory trigger)
5 to 90%, Auto
5%
N/A

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ResMed Astral Series Specifications

General IconGeneral
TypeVentilator
Displaycolor LCD
ConnectivityUSB
EPAP0 to 25 cm H2O
Rise TimeAdjustable
PEEP0 to 25 cm H2O
FiO2 MonitoringYes, with optional oxygen module
Battery BackupInternal and external battery options
Oxygen CapabilityYes, with optional oxygen module
AlarmsLow battery
Pressure Support0 to 30 cm H2O

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