The T1 has a lot of tiles. You only ever have a few jobs: oxygenate, ventilate, protect the lung, and don't kill the blood pressure. Every knob maps to one of those jobs. Open a case, tap a setting, and the same text lives under the slider.
Pinsp
Inspiratory pressure above PEEP. Ppeak ≈ PEEP + Pinsp. In PCV+ this IS the breath — VT is whatever that pressure can push into this Cstat. Raise Pinsp to grow VT and drop CO2; lower it when ΔP is >14 or MAP is sliding. ASV does not let you set Pinsp. It picks pressure up to PasvLimit.
PEEP
The floor. Recruits, raises mean airway pressure, and every Pinsp sits on top of it. Right PEEP can drop ΔP. Wrong PEEP drops MAP or stacks AutoPEEP. ASV will not pick this for you.
FiO2
Fast oxygenation. Not ventilation. If you are already at 80% and sat is still 88%, you need PEEP, a chest, or a tube check — not 90%.
Rate vs %MinVol
Rate is yours in PCV+, (S)CMV+, SIMV, NIV-ST. In ASV the vent owns rate; you own %MinVol (percent of predicted minute volume). More breaths clear CO2 only if the lung empties. If expiratory flow never returns to zero, you stacked.
VT vs Pinsp
(S)CMV+ you set VT and the vent chases it with Pinsp until Plimit. PCV+ you set Pinsp and VT is the result. Same physics, opposite dependent variable. When compliance is changing, own the pressure.
PasvLimit / Plimit
Ceilings. They do not recruit. They stop the vent from committing a driving-pressure crime — or they silently convert a 'volume mode' into a failed pressure breath. Start PasvLimit 30.
Ti, ETS, P-ramp, Trigger
Shape and timing. Ti steals Te when you lengthen it. ETS ends supported breaths. P-ramp is how hard the first milliseconds hit. Trigger is how easily a pothole becomes a breath. Transport default trigger is 4–5 L/min.
Height and sex
Write IBW. IBW writes mL/kg and ASV's 100%. Wrong profile is the most common silent error in the aircraft and in this trainer.