Volume control · 14/min
LivePaw cmH₂O
30
Flow L/min
70
Volume mL
600
Peak
20cmH₂O
Plateau
14cmH₂O
Driving P
9cmH₂O
Total PEEP
5.0cmH₂O
Tidal vol
450mL
mL/kg PBW
6.8
Minute vent
6.3L/min
I:E
1:3.3
τ (RC)
0.50s
No alarms: pressures, volumes and expiration look safe for this lung.
Ventilator
Patient
For learning, not for setting a real ventilator
A single-compartment lung (one compliance, one resistance, passive expiration, no patient effort). Real patients have uneven lungs, leaks and their own breathing. Plateau and driving pressure assume an end-inspiratory pause. Use it to understand the curves, then go to Mechanical ventilation: initial settings.
Equation of motion: Paw = PEEP + flow × resistance + volume ÷ compliance. Time constant τ = R × C; expiration needs about 3–5 τ to finish, or gas is trapped (auto-PEEP). PBW = 50 (men) or 45.5 (women) + 0.91 × (height − 152.4 cm).