Which of the following statements describes how a sigh breath is delivered on an Dräger Evita XL ventilator?
a. Every 100 breaths the delivered tidal volume is doubled.
b. The positive end-expiratory pressure level is increased to the sigh pressure for 2 con-secutive breaths.
c. The tidal volume is increased to set sigh volume.
d. The sigh results in doubling the inspiratory time every 100 breaths.
ANS: B
Sigh breaths are accomplished on the Dräger EvitaXL ventilator by intermittently increasing the positive end-expiratory pressure level to the set sigh pressure for 2 consecutive breaths in the continuous mandatory ventilation mode.
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