Which of the following statements concerning the Pulmonetic Systems LTV 1000 ventilator is true?
a. An external positive end-expiratory pres-sure valve must be added.
b. There is a backup pressure trigger of –3 cm H2O.
c. The square-flow waveform is automati-cally set.
d. Volume-targeted breaths are the only breath type available.
ANS: B
In addition to flow triggering, there is a backup pressure-sensing trigger that pressure triggers a breath when the airway pressure drops below –3 cm H2O.
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