S, T and ST settings
This settings group controls several related bilevel therapy modes. In every case, you may set two treatment pressures—one for inspiration (IPAP) and one for expiration (EPAP). Pressure Support represents the difference between IPAP and EPAP levels.
S (Spontaneous) mode—senses when the patient inhales and exhales, and accordingly supplies an appropriate pressure.
ST (Spontaneous/Timed) mode—augments any breath taken by the patient, and initiates additional breaths when the patient's breath rate falls below the clinician's set backup breath rate.
T (Timed) mode—you define a fixed breath rate and a fixed inspiration/expiration time delivered to the patient regardless of respiratory effort.
To adjust S, T, or ST settings:
From the Therapy Mode menu, select the intended mode: (S, T, or ST).
Use the up and down arrows to adjust the following parameters:
Start EPAP
IPAP
EPAP
PS
Respiratory rate
Ti Max (see Ti Min and Ti Max)
Ti Min (see Ti Min and Ti Max)
Ti
Easy-Breathe (see Easy-Breathe)
Rise time (see Rise Time Adjustment)
Trigger (see Trigger and Cycle)
Cycle (see Trigger and Cycle).