624074/07 8-3
8.2.1 Tidal volume (Vt)
The Dynamic Lung expands and contracts to show tidal volume
(Vt) in real-time. The movements shown in this window depict
actual breaths occurring, based on the proximal flow sensor
signal. The lung size shown is relative to “normal” size for the
patient’s height (IBW), based on a “normal” value of 10 ml/kg.
A
Disconnection vent. side
or
Disconnection pat.
side
alarm is depicted by a deflated lung. An
Exhalation
obstructed
alarm is depicted by an inflated lung.
8.2.2 Compliance (Cstat)
The Dynamic Lung shows compliance (Cstat) breath by breath
relative to “normal” values for the patient’s height (Figure 8-2).
As the figure shows, the shape of the lungs changes with
compliance (low compliance, normal compliance and high
compliance). The numeric value is also displayed.
Figure 8-2. Compliance shown by the dynamic lung
1 Low compliance
2 Normal compliance
3 High compliance
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