ResMed Astral Series Clinical Guide

Supplementary features
96
Sigh settings
The Sigh breath feature allows the user to program the delivery of a 'sigh breath' at a regular interval
(sigh interval) within the currently delivered breathing pattern.
The sigh breath is a magnified version of the primary breath (Magnification factor set from 120 to 250%).
For pressure-target breaths, the inspiratory duration and P control are magnified proportionally.
For volume-target breaths, volume is magnified.
Adjustable parameters − (A)CV & P(A)CV Modes only:
Parameter Setting
Sigh Breath Off, On [Off]
Sigh Alert Off, On [Off]
Interval (min) 3 to 60 [10]
Magnitude (%) 120 to 250 [150]
Note: The Magnitude (%) value is clipped at 2500 mL and 500 mL for Adult and Paediatric patient types respectively.

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