VT/IBW is a To stop criterion for SBT

One of these parameters is the tidal volume per kilogram of ideal body weight (VT/IBW).  A minimum value can be set and if the measured value drops below this minimum, the SBT will be aborted. 

VT/IBW (ml/kg) is both a To start SBT and a To stop SBT parameter. You can configure:
a)  The minimum VT/IBW allowed before starting an SBT (the default To start value is ≥ 5)
b)  An absolute low limit that it cannot fall below during an SBT (the default To stop value is < 5).

Both values can be set under:  Configuration > Quick Wean > To start SBT window (see Figure 1 below).

For more information on To start SBT and To stop SBT parameters, please see your device’s Operator’s Manual.

Relevant devices:  HAMILTON-G5/S1 (SW v2.8x and later); HAMILTON-C1/T1 (SW v3.0.x and later); HAMILTON C3 (SW v2.0.x and later); HAMILTON-C6 (SW v1.1.x and later)