A time-cycled constant flow generator is set up with a flow of 35 L/min and an inspiratory time of 1.7 sec. What is the approximate VT?
a. 750 ml (0.75 L)
b. 1000 ml (1.00 L)
c. 1900 ml (1.90 L)
d. 1200 ml (1.20 L)
ANS: B
If it is used, it may be set directly, or it may occur indirectly if the set inspiratory time is longer than the inspiratory flow time (determined by the set tidal volume and flow; time = vol-ume/flow).
Health Professions
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