T-High = Time at P-High. Long (4-6s). The recruitment phase.
T-Low = Release time. SHORT (0.4-0.8s). Terminated at 75% of PEFR to prevent derecruitment.
P-Low = 0 in TCAV approach. Creates maximal release gradient.
APRV Calculator
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Pressure waveform comparison — same PEEP & patient, different modes
VC-AC
PC-AC
PSV
APRV
Calculated Values
Pressures (cmH2O)
22Plateau
17Driving P
28Peak PIP
10Mean Paw
Lung Mechanics
45Compliance
8Resistance
8.0Min Vent
0.04Time Const
ComplianceNormal
Oxygenation
380P/F Ratio
98Est SpO2%
152Est PaO2
40FiO2 %
Lung Safety Score
DANGERCAUTIONSAFE
✓ Settings within safe range
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