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Vsync*
When Vsync is selected, a decelerating flow, volume test breath to the set tidal volume
with a 40 msec pause delivers to the patient. The ventilator sets the target pressure at
the end inspiratory pressure for the first pressure control breath. The next breath and
all subsequent breaths deliver as pressure control breaths. Inspiratory pressure adjusts
automatically to maintain the target volume based on the dynamic compliance of the
previous breath. The maximum step change between two consecutive breaths is 3 cm of
water pressure. The maximum tidal volume delivered in a single breath is determined by
the Volume Limit setting.
This test breath sequence initiates when:
• Entering the mode (Vsync)
• Changing the set tidal volume while in Vsync
• Reaching the Volume Limit setting
• Reaching a delivered tidal volume > 1.5 times the set volume
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