ResMed Astral Series Clinical Manual page 180

Parameter
Ti Min
(sec)
Ti Max (Maximum
Inspiration Time)
(sec)
Pt Height
Target Pt
Rate
Target Va
(L/min)
*The International ventilator standard indicates that Paediatric patient type is intended to be used for a patient receiving less
than 300 mL, however Astral permits adjustment of 'Vt' setting parameter up to 500 mL for cases where 'Vt' is set such that it
compensates for leak in the breathing circuit.
WARNING
ResMed does not recommend 500 mL as the upper limit for the pediatric tidal volume use;
however, clinicians may choose this upper limit based on their clinical determination.
Valve Ventilation and Mouthpiece
Circuit


Appendix B: Ventilation parameters
Leak Ventilation
  PS
0.2 to 4.0 [0.2]
(S)T, iVAPS
0.1 to 4.0 [0.2]
Ti Min is fixed at:
•
•
Adult: 0.3 to 4.0 [1.5]
 
Paed: 0.3 to 4.0 [0.8]
Ti Max is fixed at:
•
•
•
•
    Adult:
cm: 110 to 250 [175]
inches: 44 to 100 [70]
8 to 30 [15]

 1 to 30 [5.2]
Setting
0.2 for P-SIMV, V-SIMV,
and CPAP (valved)
0.1 for CPAP (leak)
The lesser of
( (2/3) x (60/f) ) or 4 for
P-SIMV and V-SIMV
4 for CPAP (leak)
3 for CPAP (valved) Adult
1.5 for CPAP (valved)
Paediatric
English 173